Trying to find out what size injectors were stock for the 94 z28 M6. I want to upgrade but not overload. I'm pretty much stock except exhaust and a SRI. Come spring i'm going with 3.73s, clutch, and a 52mm TB. Just trying to get set up now and install everything in the spring. Thanks

 

You wont need bigger injectors for those mods, plus you cant just throw on new injectors without tuning or the car will run very rich and probably badly. If you throw a head/cam package in it get a set of 30 lb/hr injectors, otherwise leave the stockers.

 

24 # - stock GM

 

What about a 93z running 22lb stock injectors with stock head and cc305 cam?? (Plus flowmaster and no cat) Would 30lb injectors be the right choice?

 

I really dont know about that cam and 22lb injectors, you would have to datalog to be sure. If you are going to cam it and plan on heads later, I would just do the 30s and you'll be set.

 

Unless it is lean with the injectors maxed out, you will see NO difference with larger injectors. And, of course, it will need programming.

Rich

 

i have a bolton lt1 with the LT4HC Kit. Its equal or maybe slightly smaller than the cc304. I just returned from CSS for a dyno tune. We got stuck due to not being able to get more fuel from the stockers. If you upgrade the cam, I would HIGHLY recomend doing injectors as well. Programming IS A MUST. But small bolt ons, I wouldnt really say you should do injectors.