Originally Posted by 4mopower
At what point did you step up on a street driven BB.
Is Evac usable on the street? would you use a oil catch with the Evac?
Breather on one cover and evac on the opposite side? Or two evac's?



I run an evac on my race/street stroker. It pulls 5 inches at idle. Two breathers, one on each side in valve covers. Been like this for at least twenty years with no issues.
I would guess that a lot would depend on the cam specs. What I have works for my set up very well.

Last edited by 68LAR; 04/03/24 02:22 PM.
4 speed street legal. Best time 10.99 @ 124 mph on 93 octane pump gas @ 3926# total weight