I just put heads, cam, and intake on my 89 IROC. Anyway I was running lean so I turned my fuel pressure up to 50 or so. Well it made my leaky injectors stick out like a sore thumb. Won't start sometimes and all that. So I want to Upgrade before I brun my PROM. Which injectors should I use? accel suck, SVO 24# only want 39psi or whetever, Vette 24# or LS1 25# maybe. I think I would like to run about 50psi. Which one are the most trusted and support performance mods?

 

Why do you want to run that high of a pressure?!? You don't have SFI, you have batch fire (which means your fuel pretty much sits on the valves). 39 PSI or so is just fine.

 

Higher pressure provides much better spray pattern.

SFI is only useful at low RPM's btw. All SFI setups switch to batch at higher rpms.

I've had best idle quality at 60psi with low pw's..

Anyway. To answer the question. I ran some ford 24#s for a while. Then I switched to 36#s.. If I were you, id try to get ahold of some "red top" ford 30 lbs injectors. Run a high rail pressure, then tune your chip to get blms dialed in right.

-- Joe