Question about fuel injection from a newbie

[GUMP]

Originally Posted by Darrel Goheen

I didn't think I needed 60 lb. 36 lb would be plenty. I only bought the 60 lb because I had a friend with a set that had very little time on them that he sold to me cheap. I think my LS1 has 42's in it.

I wouldn't run anything bigger than a 30 lb injector on an LT1 Stocker. I actually had better results running Ford 24 lb injectors in my LT1s. I have had no issues ignoring the 80% rule. Also,any gain that you might see from running a smaller injector at a higher than rated pressure will occur down low. Otherwise, at WOT in third gear everything pretty much seems to work the same once the tune is good.

FYI, my 427 COPO was delivered with 42 lb injectors at 90 psi.

Ed is telling it true.