1. oldkimmer

    oldkimmer FABO Gold Member FABO Gold Member

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    Is an Indy SR head enough to feed it. Heads are ported some but I don’t have any flow numbers. 11.-1 compression. .650 lift solid roller cam. Victor intake and a Pro Systems 1000 4150 style carb. This will likely end up in my 74 duster race car. I do have a set of Procomp Victor knockoffs that are CNC ported. And a set of Mopar Stage 6s that are ported as well. No numbers on them either but on a mild 470 stroker they made 655 hp and 620 tq. If I were to use the stage 6s I would need intake spacers or find the rare Mopar intake for them. Thanks. Kim
     
  2. abdywgn

    abdywgn dismantler

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    not that I have any experience in these matters,however, reading the BBM book talked about heads and cubic inches. If I remember correctly,the Indy SR and Stage 6 would be fine up to 470"(?). IF the Procomps were considered a large port, then those would work. It's been awhile since I've flipped pages in that book. And not that they won't work,maybe not to the extent that a larger set would. By virtue of cubic inches, it would seem you'd gain there but torque would be the big winner if the head was too small.
     
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    • oldkimmer

      oldkimmer FABO Gold Member FABO Gold Member

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      The Stage 6s are on my 470. The Indy SRs came on a 526 Indy Maxx. Dyno time only. The procomps I bought bare. They are CNCed. Should flow 360-380 on the intake side and 250-260 on the exhaust side. All heads are standard port. Kim
       
    • rumblefish360

      rumblefish360 So close, yet so far away FABO Gold Member

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      Regular stage VI heads ported or Chapmans?
      Just wondering.
      I remember reading up on the VI heads a bit. What’s the cross sectional area on them? MP used them in the crate 500 engines. Being it was THERE best head, that’s what they used.
       
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      • oldkimmer

        oldkimmer FABO Gold Member FABO Gold Member

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        Here

        373C3305-D366-4C42-93E2-E4EEBE9BC42E.jpeg
         
      • abdywgn

        abdywgn dismantler

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        I think the Max Wedge size Stage 6's would work on larger engines.But then again, use what you have and prove the experts wrong. Kinda like some BBC's that use oval port heads that aren't supposed to work...As they say,it's the combination and if it's matched it'll go!
         
      • AndyF

        AndyF Well-Known Member

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        All depends on how much power you are trying to make but one thing I can guarantee is that SR heads will make more power than the Victor intake and a 4150 carb. Are these standard port SR heads or is that a Super Victor??

        If they are standard port SR heads with a cast Victor intake and a generic solid roller cam then you'll probably make 600 to 650 hp. If you want to make more power than that then you'll need to start working on the parts. Personally I'd sell the Procomp and Stage VI heads and use the money to get your SR heads professionally ported. Have the intake ported at the same time. This assumes that you want to make 700+ hp which you didn't say.
         
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        • oldkimmer

          oldkimmer FABO Gold Member FABO Gold Member

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          Standard port heads and intake. I figured the 543 would be choked off by not enough head.
           
        • pittsburghracer

          pittsburghracer FABO Gold Member FABO Gold Member

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          The Indy SR Head is a very good head when ported. That said I had a set of so-so 440-1 heads on my 572 and ran 8.40’s@160mph with it in my Daytona with a bad fuel pump. I no longer do porting work for others but Tim Bowman in Pa may be worth talking to.
           
        • oldkimmer

          oldkimmer FABO Gold Member FABO Gold Member

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          So by going by a few reply’s I should be going mwpw and dominator carb and intake size to make bigger hp and tq. Then a bigger cam. I would like to use what I have simply because I have them. This won’t be going in till spring if it does as my 470 is still running strong. Kim
           
        • Hot Metal

          Hot Metal '69 440 Cuda

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          std port SR's?....we got guys here running a 14:1 572 with MW SR's and a small .610 solid roller, (doesn't help), 440-3 Dom, from there old 493, don't know the head cfm etc. but in a 2900lb car they have run a best of 9.62@only 131!!, 1.39 60's, the less they rev it the faster it goes, tells the story...4.56/31"tyres.
           
        • AndyF

          AndyF Well-Known Member

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          All engines get choked off by something. You didn't say how much power you want to make or how fast you want to go so it is hard to answer your question. A 543 with SR heads, a cast intake and a 4150 carb will probably have peak power at 5500 rpm. If that works for you then go for it. If you want peak power at 7000 rpm then you'll need to change parts.
           
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          • oldkimmer

            oldkimmer FABO Gold Member FABO Gold Member

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            It’s a Victor intake. 1000 Pro Systems carb. 650 lift solid roller. Mid 9s would be nice. Kim
             
          • pittsburghracer

            pittsburghracer FABO Gold Member FABO Gold Member

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            What’s the car weight
             
          • oldkimmer

            oldkimmer FABO Gold Member FABO Gold Member

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            3300 with driver. 74 duster. 470 stroker. It dynoe’d at 655 hp and 620 tq with a 10.50 dominator and a M1 intake. I know it’s choked off some with my TM7 intake and 1000 carb. Runs 10.40s at 129.65. 1.451 60 ft. SS springs, Competition Engineering’s Slide a Links. Viking double adj rear shocks. Stock front end. Kim
             
            Last edited: Nov 13, 2019
          • pittsburghracer

            pittsburghracer FABO Gold Member FABO Gold Member

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            Pretty heavy for an A body so a diet would help but honestly if you can’t run 9.50’s something is wrong.
             
          • Hot Metal

            Hot Metal '69 440 Cuda

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            @585fwhp/3300>
            60 Foot E.T. : 1.45
            1/8 Mile E.T. : 6.56
            1/8 Mile Trap Speed : 103.60
            1/4 Mile E.T. : 10.40
            1/4 Mile Trap Speed : 129
            @655fwhp>
            60 Foot E.T. : 1.39
            1/8 Mile E.T. : 6.30
            1/8 Mile Trap Speed : 107.88
            1/4 Mile E.T. : 9.99
            1/4 Mile Trap Speed : 134
            sea level no's
            just a few calcs.
             
          • PRH

            PRH Well-Known Member

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            As they come ootb, the Pro Comp Victors I had in the shop earlier this year flowed 331/222@.700 lift.
            With some clean up and a decent valve job they’re in the 355/250 range.

            A pretty nicely ported set of SR’s at MW size is in the 350-360 range.

            The only stage 6’s I’ve seen get near those numbers were the Chapman cnc’d ones.
             
          • oldkimmer

            oldkimmer FABO Gold Member FABO Gold Member

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            We’re 1500 ft above sea level. When the motor was dynoe’d it had 108% volumetric efficiency. That was in 1998. It had the dominator on it then. It came apart in 2013 for new roller lifters and valve springs. I put the TM7 and 1000 carb on it. Kim. I will note that with the dual tunnel ram and 2 660 holley’s it ran 10.teens

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            3183CA55-436B-413B-B049-E13BBF0F4BE0.jpeg
             
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            • oldkimmer

              oldkimmer FABO Gold Member FABO Gold Member

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              Now this. Looks pretty sad now

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            • oldkimmer

              oldkimmer FABO Gold Member FABO Gold Member

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              And this with the AED 750. Best run was 10.60 with it. Bolted 1000 on went 10.37

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              3ABF569D-8817-40FE-9189-D4AEFD002ABF.jpeg
               
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              • AndyF

                AndyF Well-Known Member

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                If you have all of these parts available to you then why not do some mixing and matching and figure out what works? I'd think the car would pick up a little bit if you pulled that TM7 off and replaced it with the Victor intake.
                 
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                • oldkimmer

                  oldkimmer FABO Gold Member FABO Gold Member

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                  I have been told to take the door stop off, it’s not the 70s anymore. The converter flashes to 4200. I have a 5000 stall that was made for this motor. I may just leave the 470 in for 1 more summer. I got some 1.6 and 1.7 rockers I could try also. Kim
                   
                • oldkimmer

                  oldkimmer FABO Gold Member FABO Gold Member

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                  I did notice on the Victor intake the plenum is pretty small. Does the height of it help make up the difference between it and other manifolds. Or should I look for a better intake? My Procomp heads are 325 intake cc. Thanks Kim
                   
                • PRH

                  PRH Well-Known Member

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                  I would expect there to be around a 50hp difference(or more) between the Weiand TR vs the TM7 on that 470 roller cam combo.

                  That’s assuming all the carbs were working equally well.

                  For that type of build I’d be looking into the TF manifold if you’re sticking with a single 4150 carb.

                  For a 4500 carb, the std port SV intake.

                  And if you wanted to get more serious, open the heads up to MW size and get the MW sized SV intake.

                  Those last two are if you’re sticking with a low deck motor with stage 6’s.

                  If you swap to the SM heads on the low deck, you need to run a low deck manifold.......... and there are no low deck SV’s.
                   
                  Last edited: Dec 13, 2019
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