Does anyone know what the smallest SC pulley i can have with the 42.5lb injectors and also if i put a smaller size than 2.9 on am i definetly goin to have to put a bigger tensioner on or a smaller belt, i still have stock belt and tensioner.
Thanks

 

what redline u want?

u can run a 2.6 up to 6500rpm...i did that...it was fun...but 60lbers are ftw

 

7000 redline

 

i wouldnt go any further than a 2.8...and even that is probably kinda pushing it

 

I agree with Dan (djt81185). With 42.5lbs I would go with a 2.8...2.7 should be okay also and the smallest.

 

i mean u could run a 2.7 depending on ur other mods...spooner has gmstage 1 and a 2.8 and an intake iirc and was seeing 13.0:1 afr at redline...i recommend 2.8 overall for durability reasons