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Thanks for the info! Btw... the heads and rockers I bought as a matched set! I bought these from another member, who had this setup on a running motor. All I had to do is replace springs! I will dig into though! I may find it has all been corrected, unless Cam change changes things! Thanks again!

Not even a remote chance!

So if geometry is off, what do I need to do to correct? Installed per Comp Cam recommendation Please explain. Sorry, just learning this part of it!

No, stock rockers, stock heads!

Keep in mind... I had the same kind of issue with the stock 546 heads, Lunati Voodo Hyd. cam 10230703K .494/.513 and 2200 rpm stall! I changed out because I thought I was running out of head! So that is way I am thinking it is something tied to what I have not replaced! I could not get 5000 rpm...

Comp Cam did not seem to think there would be a problem. The valve springs are good to .700 lift from what they claim! They knew the complete build including the 1.6 rockers!

What cam would you recommend?

Why do you say that? It is not a radical lift! Not understanding why that claim! The geometric is directly centered on the valve all the way through the valve movement! Please explain!

Yes I do, they are 0 lash with 1/4 turn then locked!

Ok, could not remember!

It was installed per Comps recommendation, at 106 which worked out to be advanced 4 degrees from their grind! The way I understand it was to advance for horsepower and retard it for torque!

Yes, I have jet extensions on secondaries.

No, I was thinking it was running out of head!

I stand corrected! 106-108 was my last 1/4 mile run last yr! (This was before head and cam change, I replaced old iron 546 heads with the ProComp aluminum heads.) Which was 12.6, but I have calculated my times from this yr on 1/8 mile, which was 8.4 at 83mph.

Yes, just running with cutouts open! Trap speeds at 106-108 mph, shifting it in 3rd about 3/4 track! It is just not pulling after 5100, no pops, stumble or knocks, just like no more to give! Mechanical Carter high flow/high volume pump. Maybe I will try just extensions and more gear! Thanks!

There is only 1 90 degree bend from the regulator to carb.... 3/8" including tank sending unit! If it was a fuel issue, would it not stumble? There is no stumble just flattens out on power!

That is what I am thinking! Just not sure if that if that is why is not pulling in higher rpm range!

Degreed to Comp Cams specs!

Thanks!

I have confirmed spring pressure and install height with Comp Cam! Both are at there recommendations! I have 3/8 line from fuel tank to carb, regulated to 6.5 lbs! I do not believe it is a fuel problem as I feel no stumble at all, just no more pull out of motor!

It is 5100! Sorry I tried to delete duplicate, can't seem to figure out how!

Hey Moparians... I have a 470 that has 10.5:1 compression, Heads are pro comp fully cnc'd 78cc combustion chambers they flowed 340 on intake and 290 exhaust at .600 lift. The valves are edelbrocks 2.200 intake 1.810. These heads are very similar to the Edelbrock Victor heads. Rocker arms are...

Well, I pulled the trigger tonight, I found a set of procomp heads that have been cnc worked and 78 cc chambers with 1.6 Harland Sharp roller rockers!

That is great on a running motor, but motor is out of car and torn down! I guess I will not have that figure for a while!

I have checked clearances, I performed a clay test, I have plenty of room! Clearances checked out at 0.2215 and .3003!

How do I test for cranking compression?

Ok... I do have sights on some heads that will change my compression to 10.4... still needing some recommendations!

I am told that my current cam is very small for a stroker!

My current cam it would run out of steam around 5200 rpm, I should/would like to get around 6000 out of it!

Looking for a good cam and stall convertor recommendations for my 470! I am looking for street manners but lots of grunt at the track. Running 8.5:1 compression with 346 heads. Not looking to be the fastest, but a fun combo! I currently have Lunati 10230703 (.494/.513)(226/234 at 050) with...