Kerry,
I think it really matters to the rpm the engine will see. They will be very close in power upto around 5k and then the headers will come out on top. Difference being 10-15 hp.
To be sure this idea is to be tested.
Planning on testing Langdons cast iron manifolds against headers with a moderate cam or 2.
Also plan on comparing Offy and Clifford intakes again, a bunch of street worthy cams and some not so street worthy along with lumps vs no lumps too.
Even have a fully divided head to mate with a divided intake. Lots of stuff planned and not going to be enough time.
Thankyou to all contributors! I am putting together another sheet with the planned runs (current stuff) and will redistribute it out by the end of week. Tom
