Help me win this argument 400 in a 72.
I put a set of stock Mopar stage 6 heads on my trainer car that has a 76 440 8.5-1.
Mopar .528 solid cam
Performer RPM intake
780 Holley
Before the Mopar heads the car went 12.21 et.
After the Mopar heads the car went 11.80.
That's 45 rear wheel hp,not 25 hp.
I should also say that the 906 heads had 2.14-1.88 valves and a mild port job done to it.
So over stock heads the gain would be about 60 rwhp.
I put a set of stock Mopar stage 6 heads on my trainer car that has a 76 440 8.5-1.
Mopar .528 solid cam
Performer RPM intake
780 Holley
Before the Mopar heads the car went 12.21 et.
After the Mopar heads the car went 11.80.
That's 45 rear wheel hp,not 25 hp.
I should also say that the 906 heads had 2.14-1.88 valves and a mild port job done to it.
So over stock heads the gain would be about 60 rwhp.
