I have a 91z28 with a l98 with ford blue top 24lbs injectors, can I use a afpr or would it be pointless being my injectors are 24lbs? I don't want to pour too much fuel I'm too it, I've read to bump the fuel pressure up to 50 ish with the 22lbs. Just don't know if it would be a good idea with 24s. Car is stock besides no cats and kn drop in filters 250000 on the clock too.

 

The 02 and coolant temp control how much fuel goes in, fpr controls the fuel spray or how fine the mist is. I run mine around 52-54psi.
The best way to test it is go to the track and bump it up until you dont see any gains...

(*This is a veery general guide*)

 

Ok I don't have a track around my area anymore, but ill still give it a shot and see what I feel.