I know a lot of you on the Advanced Tech board have seen a lot of dyno time, I am curious to know if any of you have either seen results from a swap like this or could venture a guess:

10:1 350 w/ vortec heads, 230/236@.050 XE274 cam, currently traps 111.85 in the 1/4.

Right now the motor has a set of Hedman 1 5/8" shortie headers. What gains (if any) could be seen switching to 1 3/4" super comp headers?


Thanks,

Seth