I have a 98 12v 180hp stock, currently i am running honed 370's, #5 plate, 191dv's, HX-40 38psi, BHAF, 4" exh, 2 stage water/meth, 15. 5* timing and chrome valve-covers (heard the chrome's good for 50hp... lol) I have a friend with almost the same setup only he has marine pistons, a 100 plate...