how much cam shaft can u get away with using the stock manifolds on a 454?
motor was built with the idea of using headers, well know the owner wants to be able to dump the exhust threw the out drive when he is in the chanel.
motor is a 468 049 casting ported big valves, 10.5 compresion, performer rpm intake.
orignal cam was 256 at 50 and i beleave 610 lift hydrolic, to much duration with stock manifolds motor will pull water in know.
any ideas?
motor was built with the idea of using headers, well know the owner wants to be able to dump the exhust threw the out drive when he is in the chanel.
motor is a 468 049 casting ported big valves, 10.5 compresion, performer rpm intake.
orignal cam was 256 at 50 and i beleave 610 lift hydrolic, to much duration with stock manifolds motor will pull water in know.
any ideas?