edge04

iTrader: (9)

Spun a crank bearing, scored two piston walls. So now rebuilding, 5 thousands over and all new pistions, etc. While I am here I will be putting in a new blower cam, had LS6 in there. Since I will be losing some boost with the new cam I plan on changing out pulleys. Going with overdriving the rear, underdriving the crank pulley and then testing the front. Any thoughts here? Trying to get 9-10lbs boost out of it.

Also my fuel system,

I currently run a Walbro 255 but looking to add the Racetronix Hotwire Kit or?

I have the bosch 280150558 injectors which are 42lbs and believe they came with the maggie. Should I upgrade these to 60lb ones or???

I am looking for 600-650 out of it.

edge04

iTrader: (9)

What do you guys think of these clearances?

1.2 - 1.5 Main
2 - 2.2 Crank

stevieturbo

I think you need a bigger blower.

edge04

iTrader: (9)

Well that isn't going to happen this time around so trying to make the best of what I got.

Magred2001vette

iTrader: (2)

Who did the install and dyno tuning before the engine failure? What HP level were you at back then?

edge04

iTrader: (9)

It was built by a crate engine builder out in CA. I don't think they dyno each motor and they send it out with their secert tune (password protected).

So now I'm starting from scratch and trying to do it right.

EPP

iTrader: (22)

Very few shops these days lock their tunes, that just isn't right!

supersub on here, (Ray) can probably tell you what pulley to use. Bob

edge04

iTrader: (9)

Agreed and couldn't believe it when they told me. I am not the original purchaser so I would not have gone for that but it is what it is.

I have a very reputable tuner near me that will do the tune after rebuild.