i'm planning on replacing my 86 305tpi with a 350. I'm going to get 24# injectors and afpr and i was wondering would the stock ecm provide enough fuel for 350?

 

yes it will. with 24# inj. you may run rich. 22# for stock and some lightly moddified 350 eng. are just fine. I have a modded 350 in mine I ran the 24# inj. for a couple years with no problem till I got a job real close then the car being in open loop for most of the drive made me notice real quick It was running rich. ( this is when I got in to chip burning) you only need bigger inj if you run real high rpms or high hp.

 

you will have to get a 350 tpi chip 87? I think will work on the 86. the 305 chip will work(run) how well I have no Idea the stock 350 chip will be programmed for of course a stock 350 and the 22# inj.