sostreet

iTrader: (2)

Excuse me if I dont make sense but im new on the forced induction scene. I'm in the middle of building a 79 Malibu and cant decided to go with the s475 or s480. The car will see alot of track time and I can't decide. My mind is saying s480 because I think it would leave me room to grow but I've seen s475 perform just as well. I will be running stock bottom end , custom grind cam, ls6 intake, th400 trans with transbrake and most likely a 2 step. Which one do you guys think I should pull the trigger on and which turbine wheel and a/r housing. Any suggestions would be greatly appreciated.

67Firebird455

iTrader: (27)

I recommend the Billet S476. Will make plenty of power to push that kind of car into the 8's if set up properly on E85! Have a buddy (Stock48) running one in the low/mid 8's at 160Mph+ off the footbrake and drives to and from the track.

sostreet

iTrader: (2)

That's what I needed to hear .I did forget to mention I also plan to run e85 with 80lb injectors if they can hold up to the task.

67Firebird455

iTrader: (27)

With E85 at big power levels, you'll need more injector for sure. What are your realistic goals?

sostreet

iTrader: (2)

Man with the stock block I would say 600-650. I just something I can grow into without having to but a new unit. There's no telling how long the stock block is going to last so I want something I could use if I decided to do a built block on the side.