86z.28

I have a 86 z28 with the 305 it's carburetor qjet I'm going to buy a junk yard 350motor and put in it and leave it carbed but going to get a holly carb and new rpm intake my question is what all do I gotta change electrical wise do I need a new computer should I grab the one that I'm getting with 350 in the junk yard id like to just get rid of it and jus wire up my distributor to starter to ingnition idk anything about wiring please help

dmccain

iTrader: (2)

U don't need the computer if you are ditching the quadrajet and going that route. IMO the 750 quadrajet you have is plenty for most any street 350.Just keep up with your wiring for gauges, accessories, etc..

sgp0511

Is your current qjet electronic?

86z.28

Yes electric choke

sgp0511

Just electric choke? No other electronic connections on carb? If so it's easy enough just keep quadrajet, better gas mileage and as long as its tuned right a great carb, no need to change carbs for one with worse mileage. Run an hei distributor put 12v keyed to that and bam you're good to go. Just got done doing a swap myself, really not that complicated.

sgp0511

And for electric choke just run keyed power to choke and that's it. Going to have to wire up fan also. No biggie

sgp0511

But if it's electronic quadrajet that's different.

naf

iTrader: (7)

The choke wiring on the qjet is not a part of the computer harness. There is no reason to re-wire this with a swap.

If removing the computer controlled qjet you'll also have to remove the computer controlled distributor and replace it with a mechanical model. You will also have to install an alternate method of engaging the torque converter.

If your computer controlled system is functioning, or can be brought back to functioning status with minimal effort, there is NO reason to replace it when swapping to a 350. It will run perfectly fine on the 350 with minimal adjustments. The secondaries on the computer controlled carburetor ARE NOT computer controlled but function exactly...but go ahead and rip all that stuff out. for whatever reason.

86z.28

Yea it's just electric choke and I don't really care to much for the gas mileage it's not going to be my daily driver ima put a cam and some good heads on it along with new intake and carb long tube headers and new distributor Idk which one ima go with tho Il figure everything out once I go get the motor from a junk yard

naf

iTrader: (7)

GLWT

RIP poor car

DonW

Help me out here naf....I think i get the WT part, but whats GL??? Good Lawd? Go Long? Just what are you sayin? hehe