Rossi 3.5

[Joe Steele]

I have a Rossi 3.5 Powerhead, Rossi Header and Pipe, Bullet-Drive Lower Unit by Hyperformance on a VS-1. Should I run it with or without the head shim?

 

[57fairlane500]

Your going to have to check the head clearance. I have had several of the Rossi power heads (still have 3 of them) and all of them have been different.