Running holley efi sniper should have mentioned that as well.View attachment 155741 waiting on the final parts To my build 355sbc edelbrock 1552 pd supercharger 9inch with 4.56 3 speed th400 turbo(built) caged 6 ties directly to the frame boxed in walboro 255 looped forged internals yadda yada etc etc anyone here had a similar setup still running 275s I cant find anything online or in the forums here. Just wondering what I should be looking at for quarter mile was about 450 horsepower before boost supercharger claims up to 500hp gains; than got the full rebuild bigger cam built bottom end to top almost all brand new down to valve covers. Thanks in advance. My apologies if this is confusing to anyone. still new to these platforms(and young) to know these old v8s the way I'd like. Cheers!