Would I be able to use 19lb injectors on my 350 after its finished?

350 bored .020
zz4 heads
zz4 cam
heddman dport heads and ypipe
hooker cat back
stock tpi

Looking at how the zz4 engine makes 355 hp, I`m looking at making about 300-325 hp since my rotating assembly will be heavier.

 

To do things right (without monkeying with fuel pressures etc.) upgrade to 21's or 24's. You may also need to do some chip burning.

 

An L98 Corvette uses 24 Lb injectors stock. If you do have a 350 (sig. says 305) then the 24 Lb would be bare minimum for this. Might want to go even a little fatter than this with fuel pressure adjustment to fine tune it.

 

I`d rather go with the 24lb`ers anyway. Thanks for the help.

 

350hp motor, with bsfc of .50, and 80% injector duty cycle at 50psi rail pressure = 25.5# injector

-- Joe

 

19 #ers are fine for a mild 350 as long as you are using the 305 chip with the 19# injector constant. just use an adjustable fuel pressure regulator to up the pressure a bit and you will be fine, especially if you are using a MAF sensor. there are countless 5.0 mustangs in the low 13s with thier stock 19# injectors, my stock injectors on my 305 will eventually have my car in the high 13s when i get a real exhaust and loose some weight, and thats on a stock chip, see the sig.