I have a '85 t/a that orinally had a 305 tpi. I had spun a bearing on it so I replaced the block w/ a 350 gm goodwrench crate. I put all the orginal tpi components back on, which means I am currently using 19 # injectors. The car runs fine, and has a considerable increase in power. However, I am assuming that the small injectors are hindering the engines potential. If I upgrade to the 22# injectors, would I have to modify the computer at all. I hope not, because I know nothing about them!!
Any help is appreciated.

 

The only correct way to a larger or smaller injector placement would be to do it in the e-prom.

U will need to do tuning/editing for this. See stickies above.

The 85 vette is a 350 but the timing will be too high for your combo.

Upgrading to a 86-89 ecm or a 90-92 SD setup would give u a 350 with 22# inj fromt he factory. And a lot more support as a lot of peoepl deal with the ecms and the $6E and $8D code.

Just depends how much time u are willing to invest.

There is someone here who has a decent running car using the 85 code, just the name escapes me as of now.

later
Jeremy