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Back again, rechecked timing have it at 14 initial. Checked secondary throttle blades and they are closed. Added 3/32 bypass in primary blades. Runs better throttle is closed up more but I can still close the mixture screws it smells better but still diesels. Idles 750 rpm.

Thanks still playing with it.

Well pulled the car out haven’t touched it in 6 months. Still diesels on shut dow. Holley hp 750 dbl pumper. Yes it will run with mixture screws turned in. I have set the initial timing at 10*,14*,20*. Idles 750 rpm. I had issue with pvc so temp removed. Rear throttle blade shut. It pulls about...

Thanks for replies I need to go through everything again.

750 double pumper . I know I have to leave the screws turned in less than full turn. I will re check carb.

Yes I am going to try that again.

I have a 360/380hp crate with a 4spd coldest plugs I can find idle set at 750 timing 32 and 180 stat. It also has a Pertronic in the distributor. It diesels at every shut down when warm.

BPE when you say 340 based build. What do you mean when it comes to a 340 block. Are you using a standard early style block or one of the reproduction blocks . If a standard 340 block what type of strengthening are you doing. What would you suggest as the bare minimum to strengthen. I ask as i...

Dibbons I remember your car and still see it around at sac. I also ran a tired but nasty 273. Hipo pistons stock heads, 340 TQ intake and carb, 4.30 gears, auto. I always think about doing it again.

would it be worth it to go with econo heads that have a little work verses just porting my x heads.

What head do most people like that is available for a stock stroke 340-360 race engine. I would like aluminum but doesnt have to be. Im running lots of compression about 13-1 and big solid cam. I already have a collection of w2 parts but I havent committed to them yet.

Mikesduster, What pistons are you running.

I have discovered they are 48 degree heads. Just not sure If I can, or should use these on my engine.

Yes i just dont want to get involved with heads and intake machined that fit only one engine.

Casting number is 3870810E. Intake surface is milled thin. Mopars west says there good heads. I am not sure if they are the 48 degree heads.

I would like to know if there is a quick way to identify older 48 degree W2 heads. I think I have a pair and I dont know if its worth the trouble to use them on my 410 stroker. Thanks

With these large strokers nobody is mentioning the heads they are going to run.

Yes thats why I want to run the closed chamber as I have another zero decked shortblock for the future. Thanks

Hi, is anyone running the closed chamber heads on there 340. My engine has a positve deck of about 0.18. Thanks

Thanks for the response. Im looking for stroker heads. Just thought someone might have used them.

Has anyone run the Indy Edelbrock heads. If so How do you like them. Im looking for Aluminum heads for my 410 stroker. Thanks

That was also one of my questions. How much can I rev this cam, Ive only reved to 6200 and it felt like it was still pulling. Im not used to engines that run much higher than 6000 rpm. Thanks Joe

The problem with the comp 305/525 was it was to radical. At the time I was trying to detune the car for more of a daily driver. I had the mopar cam and I new it would Idle better. I have a 410 stroker Im building,but I wanted to get to the track this summer and my Dart wont be ready for quite...

Yes I am pulling the SS springs and shocks from an old SS340 Dart I have and I will tighten the valve lash on the cam and see what happens on the next trip to the strip.

I probably should clear up a mistake here that I have made. My 107-108 mph was done at another track. Sacramento CA. Last night I ran at Infineon. The winds are terrible there and in previous cars I have lost 2 mph average at Infineon vs SAC. I may only be done 3mph now, I have to do something...

Thanks, Joe

Yes as far as tuning its good. Engine will rpm in the 1/4mile to 6200 no problem. This engine is a 030 over 340. stock x heads stock 71 TQ setup,3500 stall, 4.56 gears. this setup was a consistant 12.5 car before with the comp cams 305 magnum cam. My 60 foots were only 1.8s But that was with...

PS anyone running this cam what rpm have they run it to. Thanks

That maybe but I find it hard to believe. That I could lose that much mph. I have heard some people run this cam tighter on the lash.

I swapped to a 528 284 Mopar mech cam. I had a Comp 305 525 cam. Car went 107,108 mph with the comp cam. Now with the Mopar cam I am running 102 mph. I set lash at 28/32 like it called for. The valves sound very loose at this setting. I am at a loss for the loss of mph.