"RE: How much boost?" on a different note,what about the other way around.built internals and stock injectors(still can't control my 440's and 02 readings)w/ walbro and 12-1 fpr on 12 psi?safe or borderline? hey aj, ummm i was told not to be running 12:1 fpr on 440s and that kind of boost...i switched to 4:1 w/recalibration disk ...dino??
http://geocities.com/shogunltw/ People that say "money is the root of all evil" dont have any. BR auto- star stage III @15psi & rising