durty

iTrader: (3)

im building a turbo 4.8L for my 80 malibu, and im trying to figure out which cam to go with, the motor will have 241s w/ 918 springs, LS1 intake, flipped 6.0 manifolds and still deciding whether twins or single, either t70 w/ .68, or twin s200 b/w.

i was looking at the TSP 220/220 or the G5X1 or Futral F13

WFOWS6_IL

iTrader: (3)

Not for sure how much help this will be, but I have a stock 4.8 in my RC SB GMC with a mild cam. 212/218 dur and 557/562 lift. I've noticed at lower RPMs the truck struggles cause it doesn't have the torque the bigger CI motors have.

I know your turbo setup will definetly make some of that up, but I'd call someone like Bullett cams and have them make a custom grind for your application.

5.3LJimmy

iTrader: (10)

I'd also recommend calling a vendor about a custom turbo grind. You'll get much better results than you'll see with an off the shelf cam.