Dude is ok to run 4 inch front wheels go and get a set of Nakkang 165/80R15 they can handle anything you can trow at them, street, track 160 MPH awesome tires! and the best they are cheap! unless you are asking for size 17 there is another story!
Anybody running the weld rt-s series black wheels? They don't make them in the 3.5 only 4 inch I was wondering the same thing. They look good,priced decent and website says they excedd the sfi 15.1 drag specs .Those billit specialtys are nice too.