Originally Posted by 73nova350
was just looking at those heads u posted on here, they look great for the price and it says there assembled will those springs work with my 480 lift cam? and if i have 9.1 compression now what will it be with the new 64 cc chambers? thanks guys
Your cam closes the intake valve at 41 degrees ABDC @0.050" tappet lift. With 9.0:1 static compression ratio, the dynamic compression ratio is 7.66:1 and the motor is a pooch, compared to what it could be if you had matched up components. Do you really have any idea what the exact static compression ratio of the motor is?