tons of guys are into the gm 660 engines, theres even a site just for them, 60degreev6.com
these are great powerplants but noone in the aftermarket supports them really, add to that the transmission situation on the n-bodies which limits us to about 250-300hp without trans modifacation and you have a limited few of us who really push these cars.... i can make 500hp without issue, the only question is can i put it to the ground when its all said and done... thats going to prove to be the hard part
