Ok, I guess I missed the part where they specified 452s being used.
Actually it looks like they never stated it, I thought they said it had 452s on it but I just re-watched it and they don't specify. I thought the late motors all went to 452s and did away with the extra cooling passages so I must have just ASSumed it since its a '78 engine.
Yes, that's what I attributed to the difficulty of hitting their 400 hp goal. 7.4-1 combined with probably some variant of poor flowing RV cylinder head ? Pretty much the 1-2 punch recipe for a poor performing V8.
