What was the build recipe if you don't mind sharing?

[QUOTE=sutphen 30;4251341]yeah,stan wiess has some good info.heres a print out

http://users.erols.com/srweiss/table...hevy_Big_Block

[ATTACH=CONFIG]535800[/ATTACH]

[QUOTE=Rookie;4251520]Thanks a great website. I've been pouring over the data on there for the past few weeks trying to figure stuff out on my new builds.

Just screwing around this morning having coffee, playing with my dynosim program. How accurate is it, who knows.

But, I built a typical 502 engine. 9:1 static compression, single plane intake manifold, the ever so common crane 741 camshaft, and a single 950 carb.


Stock GM 188 Heads. = 532HP.

Dart 308 Iron Eagles = 591HP.

AFR 305 CNC chamber =615HP.

Edelbrock Performer RPM Rect =551HP

No other changes made besides the head flow and appropriate valve size. Whether or not the program is accurate, or the data Im entering is, the numbers seem to be in line in what I've seen. Any thoughts?

joe,does the program factor in things like timing or air/fuel ratio.also water temp.

It does factor in timing, air fuel ratio, air temp, no water temp though. AFR was left at 12.5:1, as thats where they say max power is made on gasoline.

if that program is correct,and i would say it is in line, the iron eagle head is the best bang for the buck.i still like the afr cnc,d chaimber 305 and i think in reality it would do a little better espically in a marine application because we can run them a lot cooler than in a car.

Just did a 540ci, 9.5:1, AFR 315 cnc heads, 680 lift crane hyd roller, single plane with 1100 CFM carb. 715HP. Changed to 800 Carb, 685HP.

Tunnel ram with twin 750's, 762hp :frog:

I agree with ya on both parts. I added the Edelbrocks performer RPM rectangles to the prior post.

That dynosim is interesting for sure. Thanks for sharing that.