mean_greenz28

hey...ive been a long time looker, but this is my first time posting anything. Im currently building a 396 for my 94Z and im wondering what size fuel injectors to buy. Im going to run stock heads that have been worked on. Compression is about 10.5:1. The bottom end is fully forged, and i plan on putting nitrous on it eventually, but it will probably be a wet kit. Also, what is the best place to buy them from?

BlackScreaminMachine

iTrader: (17)

There are going to be more factors the we need to figure it out but on my 383, with all bolt ons, exhaust, mild cam and cnc ported heads I settled on #37 racetronix peices, they worked mint and tuned very well.

mean_greenz28

what other factors do you need to know?

BlackScreaminMachine

iTrader: (17)

Cam
Headers
Exhuast
Rocker ratio
Drivetrain
Throttle body size
Other basic bolt ons (CAI, Free mods)

Formula350

iTrader: (3)

If you plan to tune for them or not too is a big factor. While you can throw in slightly bigger injectors w/o a problem, it's not exactly a wise choice to go TOO big. Throws off the AFR

mean_greenz28

ok....like i said before the engine is going to be a 396, with an LT1 intake and heads that have bigger valves in them, and will be ported and polished. the compression will be in the 10.5:1 range, i'm going to use 1.6:1 rockers, hooker super comp long tubes with their y-pipe, a 58mm throttle body(probably a Holley) i've got an SLP CAI, a TCI 3500 stall, a flowmaster catback, and the air and egr are going to be deleted also, i can't remember what cam im going to run, but i know it was a new cam that comp came out with recently, and it was the 2nd biggest cam they made for a LT1 that came off the shelf....hope that helps some

siniSSter

iTrader: (2)

Hp is basically the main factor...I put down 465 RWHP on my 383 with 30lb flow matched injectors. I would say maybe 30-36 pounders should be sufficiant.