Originally Posted by mshred
Originally Posted by dizuster
I 318 obviously doesn't have a ton of torque to start with so you have to error on the small side.

But a 3.73 gear w/3000 stall is going to want a way different cam than a 2.76 w/stock converter.

I think you need to firm up that plan first before you pick the cam.


Its a pretty firm plan, although it may not get that gear and converter right away. However, would a cam suited to that gear and converter kill vacuum before making the change? I will probably try for 3.55s first, just depends if the car stays with an 8-1/4 rear or an 8.8 ford.


Your choice of gear and stall has nothing to do with the vacuum an engine makes. Thouh like timing how much you have at any given rpm and load will be different. For "cruise" condition you want to he highest reading a given engine can have at the time.
And what brand of rear also means nothing for what you're asking. 3.55s are3.55s.
Won't change how the car runs down the road at all.