I was wanting to know what the next step to do for hp. I have 370 marines, a B-1, 191 laser cuts, 4k rpm, and all the other small bolt ons, exhaust and afe. I pulled the head and had it o-ringed and stage two port and polish job. I put studs in when i put it back together also. The truck is drivin on the street almost daily. I had a 500rwhp 24v and am wanting to get to that hp. can i get there and still drive it on the street. I havent dynoed the truck yet so i may be pretty close but it doesnt quite feel like it. I guess a big set of twins would help. any other ideas?????