Should I buy a set of stock Delco 22 lb/hr injectors or get SVO 24 lb/hr injectors and a crane AFPR to lower the pressure. The only mods i have on my 350 TPI is a K&N and a DynoMax cat-back. I am open to any suggestions. Thanks

 

Buy neither! Instead, buy a used set of 24# LT1 injectors and send them to Rich at Cruzin Performance (www.cruzinperformance.com) and pay $80 to have them cleaned and flowmatched! They will come back to you with a 1%-3% variation which is BETTER than the GM STOCK 5%-7% variation! They also put new screens and o-rings on them! Doing this will save you A LOT of money! I found my 24# LT1 injectors for $25 and had them cleaned and flowmatched for $80! I think $105 is the best deal you're gonna get!

In addition to the AFPR, you're going to need a fuel pressure gauge obviously to find out where you have your AFPR set! I recommend the Accel Gauge! It mounts to the fuel rail and stays in place so you don't have to worry about hooking it up and unhooking it up! Just a word of advice, if you get this gauge, don't over-tighten the fitting that goes to the fuel rail... it's brass and it's easy to do... I did it!

 

Whats with all the exclaimation points? Stop yelling man your givinh me a headach!!!

 

usually it's buy 24#, or 22# + afpr becuase w/ the afpr you can raise the pressure and increase the volume at WOT, similar to a larger injector at a lower pressure.

James

 

I did find 22 lb/hr accel injectors but they are 550 at jegs. How does 21 lb/hr accels and a holley afpr sound? I don't want used parts so the LT1 injectors are out. I will call Rich @ cruzinperformance.com tomorrow and see if he has 21# in stock. I really need to pay the least amount because when my Formula made it to the emissions test it bombed, so I might need to pour more money even after the injectors.

 

550 @ jegs? Holy crap! I paid $240 for the set from summit! I went with the accel 24lb/hr. injectors and I already had the crane afpr. I turned it down to 40 psi b/c I thought that these injectors would run rich, but it's about center to lean on my autometer a/f ratio gauge. I am going to bump it up some so it is more to the stioch/rich side. Sheesh I can't get over what jeg's wants for those injectors! Proof that crack does not just smoke itself.