i wanted to know what the boost is on a 76MM (2.99"or i suppose 3" AKA GM Stage 3) pulley and a 2.7" pulley

 

im on the gm stg 2 tune and 3" pulley on 15 lbs of boost

 

Changes depending on location and mods....lol. Stage 3 should be like 14-15, mine only does like 13 now that I did all the exhaust though..

 

if u are just going for boost move to below sea level places and run stock exhaust lol... u can hit 18 that way... really inefficient power but it sounds cool haha

 

It all ranges if your heavily modded, or lightly modded or if you have a intake leak, exaust, tension of belt, restrictions, tune, so you can not go based on pulley, it needs to be based on every thing. im on a 2.6, and i run 16lbs, but i have a leak some where, so i would be around 18, and im built with every mod except for a single pass or dual pass. so yeah

 

boost= measure of resistance.