I i have an 88 iroc with a 305, and im havin the 305 pulled and installing a rebuilt L98 350, and i know with the factory 350 they used 22lb injectors, and my question is would my 19lb injectors and ecm from my 305 work fine with the 350 even though the engine would probably be running lean? any help or answers would be greatly appreciated!

 

Not a good idea for reasons beyond just the injectors.

The ecm takes too many things into accountability to where you've even got to be cautious replacing one L98 memcal with another.

 

thanxs for your help, and also what is the diffrence between the ecm from a 305 tpi and a 350 tpi?

 

In the speed density years (90-92) the knock sensor and esc. Since yours is a MAF year the ESC is seperate from the ecm, but still needs to be addressed, your fuel and spark calculations will be different from every memcal to memcal, also things car specific like differential ratio's etc.