Vortec350ss 2005 Sierra Denali - Forged 370 and cog driven TVS2300
#987
Haha yeah I'd be going bigger pulley to bring the boost down, with a 2.9" pulley this thing already screams pretty well. the 5.3 is staying until it gives up, or until I get a massive inheritance and pay off all my bills, whichever comes first...






