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I'll get hammered for this, but is a cowl induction scoop legal for the class you will be running. I'd really like the Stealth if possible.

That converter will act much better on the street with less gear. For what your doing with the car, i'm in the 3.91/4.10 range.

Since it ain't cheap to set up new r&p's these days, i would base your choice on if you plan on any future upgrades. I ran a mild engine combo with 3.73 and 27'' tires as a daily driver with a average around town speed of 45/50mph and only several 150mi trips to the beach that were kinda...

I think you've made a excellent choice for a daily driver. It's refreshing to see someone pick a cam mild enough that fits their needs. It has pretty quick ramps and enough lift to really build low/mid range torque even without a lot of compression. A plus is that Hughes recommends a single...

Did you guys miss this.:) I believe the 346 heads came into existance for the 71' model year with a high 70's chamber and moved to a high 80's for 72/73. Not knowing where the compression ratio ends up, i'd look to stay mild on duration and whatever shelf HR's are available there should be...

:thumbsup:

Not sure what that entailed, but if your running a ign. box of some type, it's ground could be the issue.

Not sure if anyone brought this up, but what's the chance your compression tester is faulty.

I believe the 69' 273's were hydraulic cams only, but that's a great thought for some of the early 273 owner with low mileage original engines.

Welcome to FABO Alex! That's a great looking car. :thumbrig: I'd start with a really good tune-up, as in all fresh parts and pushing the ignition timing up from the "book" numbers. Not sure how deep you want to go at this point, but a nice dual exhaust system would be my first mod. Granted it...

Would really like to know "all" the cam numbers, but regardless, the converter & some gear helps. With the coolant temps low, the total timing at a reasonable point, and the carb rich enough, maybe? I know I didn't answer your question, but most of us can't. It's gonna take a little...

A Joe Sherman built engine...He's one of the best in the business! How about running a conventional PCV and piping a breather to the air filter? Maybe the best of both worlds?

Nice! :thumbrig:

Man, I haven't heard his name in 30+yrs. When I was young back in Maryland, his M/P mid 60's small block Chevy II was the nastiest, most free revving engine I'd ever heard. I'm Pretty sure I saw him run a B/SR back then also. Absolutely awesome...:thumleft:

Hi Jim. I don't want to step on someone else's thread here, so it would be better if you started your own with this question.....maybe in the "trans/drivetrain" forum. With that said, we need to know what the main use of the car is you'll be using it for? The 2500 stall with a good tune would...

Subscribed! I'd love to know what's changed with the ethanol tinted fuels.

Your welcome Rocco. I had a blast seeing some heads that i've only read about. W7,8,9's, some milder RPM's, a SBC head that must of been designed after a current Nascar head. It was huge and i could just about put my fist in the intake port. Had to be for a giant boost application, in my...

UPDATE: I was able to get by Performance CNC today. This is not what we'd think of as a "retail" type shop. The vast majority of their work consists of proprietary "secret" machining for engine builders and race teams around the world. As per their wishes, this was the only pic I took. Me...

Sending PM...

I have a question Rocco. Is this strictly a head upgrade, or will you be looking for a companion cam to go along with a new combo?

Performance CNC is about 5 miles from me. I knew about them, but I've had no dealings with or heard anything about their work. If you'd like me to snoop around a little, I may be able to stop in there early next week?

Using a generic calc.....the intake close on that cam is 74* give or take. What altitude are you using? I came up with a 8.07 dynamic at 400'. From what i'm seeing, i think you're good with this one. If you think you're close, you could always install it a few degrees retarded, but I don't see...

I loved the sticky belted tires back in my day. They worked very well for me with 12sec cars, although not like slicks. If the track was indeed prepped right, i'm thinking you need to adjust your launch rpm or maybe you're just dropping more power on it then you think with the cooler conditions...

I think you will be fine with some work and track time. I do consider the really technical parts/terms of different systems/issues, and i will admit i'm not the sharpest tool in the drawer, but I do like to have "simple" conversations about things that a lot of us can relate to. I hope you...

First off, you have a nice running car in street trim. Second, while this is a nice conversation, and very informative for many, me included.....The bottom line is, we're talking shift points here. What that means to me is we're looking for a few "hun", and possibly up to a tenth max. You're...

To get back to your original question.....Short shifting, in my experience, seems to work best on lower horsepower cars with a lot of gear. A example would be a small engine NHRA/IHRA "stock" class car with a big converter and 5+ gears. I'm not saying it wont work in your situation, but with...

As far as I know, the 904's were all 2.45/1.45 geared until the early 80's when the A998/999 low gear units began to appear. I believe all the 727's were all 2.45's also. Once they started the RH whatever and 500 designations with the newer transmissions, i'm lost...lol. I apologize if I...

Ed, I see where some of our differences are now. I was thinking of the 2.45/1.45 (904) and you were looking at the 2.74/1.54 (LG 904). I finally used a calc instead of that empty space between my ears, lol....and came up with this rpm after the 1-2 shift at 6000 r's. 904 ........ 3,551 200R4...

Not exactly, with the 200R4 OD trans 2.74 1st, 1.57 2nd, 1.00 3rd & .67 4th. it has approx. 2% more drop @ the 1-2 and 5% more on the 2-3 then the 904. Not overly huge, I get your point. I suppose I was being a little picky between the two. Just looking at any advantage/disadvantage I could...

After looking at the dyno sheet, the main issue I see is the big rpm drop from the 1/2 shift with the 200R4. Depending on how the converter works out, I can see another 500 r's on the 1/2 shift to get you even close to the torque peak. Probably 6200 on the 2/3 is close also. As long as the...