ironleg

to start with i have a 040 over 350 flat top pistons and some cam headers people tell me to run the 30lb svo injectors i know with the mods ive done i will have to get a chip my ?? is will the stock fpr work with the 30lb injectors?? sorry its a 1988 tpi car thanks

3.8TransAM

They would be fine, but over kill.

The 24# will work just fine

As will your stock 22# if in verified good shape.

later
Jeremy

freestylzz

Ya, go with the 42# injectors.

ironleg

now im not sure what to do i hear so many differnt things i was told to go with the 30lb that thay would cycle less and not get hot where the smaller 22 or 24 would cycle more and get hot and could boil the fuel i just want to buy one set .? any thoughts on the fpr

doc

I am currently running 24# Ford Racing injectors (formally SVO) in my 395 cu.in. stroker motor at 52psi fuel pressure. The 30# injectors are certainly overkill, and not necessary. My 24s were first installed in my modified 350 (head,cam,gear) car back in 1997 (or so). So, if I can run the 24s in my 395, you can run 24s in your 350.

My advice is to install a AFPR and 24#/hr injectors. And for best performance, an Eprom chip might be needed. If you go with the 30s, a new chip is required, the engine will not run right with 30s when its program for 22s. The 350s came with 22 #/hr injectors from the factory, just to let you know if you did not.

91 355 z28

unless your planning on making over 400hp 30 are overkill and u will deff need a chip to shorten up the pulse width otherwise u'll run rich as hell.. i just put 24's and an adjustable pressure reg. and need a chip. as far as cycling and boiling fuel thats crap each injector opens once per revolution no matter how much it flows.. the only difference is an injector that flows less fuel will need to be open longer then one that flows more fuel.. thats why if u put high flowing injectors in a motor that doesnt require it u need a chip to shorten up the pw to make it flow as much as a lower rated injector

ironleg

thank you all for the input it realy helps more than you know im not to bad at working on cars but when it comes to the fuel injection part im lost thank you all ironleg