Sierra6

All I can find is info for swapping an older, computer controlled carb setup onto a fi engine. Not much info on the edelbrock setup. I have been fighting bad mafs and injectors and ecms and leaking cold start injectors for the last decade and I really would like some help on swapping to a carb. What distributor should I use that is not computer controlled? And any tips on the fuel system?
Thanks

Sierra6

And do I have to replace the transmission and throttle cables?

aaron7

iTrader: (7)

I was told the MPFI intake bolts on to the early (82-84) carb motors... should be the same. I don't see why you couldn't just run the Edelbrock 60^ V6 intake?

Bottom of the page: http://www.edelbrock.com/automotive/...ormer-v6.shtml

EDIT: Sorry yah, 60^!

drdave88

iTrader: (3)

You meant 60 degree intake right, not 90?

Sierra6

yes, I'm talking about the edlebrock 60 degree intake. my question is about everything else i'd have to do to make it work. I've heard it won't clear the stock hood? what kind of distributor would i have to use? could i completely delete my ECM? What throttle and transmission cables would work with it? what vacuum lines would i need to keep, and does this have previsions for them? etc etc..

drdave88

iTrader: (3)

Just by looking at that one (bottom one on the page) I can tell you it won't clear a stock hood. If you can find a distributor to work, you can delete your ECM, but you will have to hack up some of the wire harness or run new wires for ignition, starter, cluster, etc. You will need different throttle and trans cables due to the length and connection style to the carb, opposed to the TB.
That's about all I can answer for certain without searching through all the older threads about carb swap in the V6 board.
Not trying to say anything bad, but have you been using used parts or cheap aftermarket parts? I owned a couple different V6 engines and never had an issue with injectors, and only 1 MAF. You could look into having the injectors professionally cleaned too.

In my experience, swapping from FI to carb is not exactly a fun or quick thing to do. There is a lot more to it, especially if you went the route I went and want everything else to still function in the car, like your cluster.

Sierra6

Thanks for the reply. I have used quality parts. The MAF was an AC delco bought 5 years ago. I recently bought 6 refurbished stock 3,4 injectors (for my 3.4 block swap.). I was having a high idle issue. i replaced the iac and tried to properly to the relearn setting the minimum idle and the tps to .55 volts but the idle again raised to 1700 rpm when i plugged the iac back in. i was also having problems with the car running fine, but when it got hot, it would die on throttle input worse and worse until it was undrivable. i replaced the ignition coil. didn't help. i replaced the fuel pressure regulator. i never got a chance to see if that helped. i also got a code 51, and replaced the ecm with a delco ecm that had been sitting in a warehouse since 1995. (it must have worked, code 51 went away) now i'm getting a code 34.

HOWEVER, i am now having ignition issues. I've made a thread in the tech area this morning that has yet to be responded to. If you could take a look at that i'd appreciate it. i've browsed this site for MANY years, but never posted much. i know you know your stuff. I'm about to give up and take it to yet another shop.

Gfunkill

sub'd
Just in case I jump ship to carb-land.

Also, a little bit of info from my experience.
I did the 3.4 swap a couple years ago, and it never wanted to idle, cold, hot, it would die.
But, if I gave it a little throttle, it was OK.
I was (and am) leary of messing with the idle screw on the TB, so instead, I wrapped a piece of ziptie around where the screw meets the TB to keep the throttle open just a tiny bit. It worked, and it's been there since. Could be becuase the computer is still the 2.8 computer, could be the MAF not working (it didn't work before the swap, either) whatever, that little trick saved me from keeping my foot on the gas when I had the auto trans, and now with the stick, it only stalls if my shoe is wet and it slides off the clutch.

AM91Camaro_RS

I listed one of the edelbrock carb manifolds in the classified section the other day. PM me if interested

hotrodhonda02

The edelbrock is the easiest intake manifold to get to work right.... we ended up making a spacer to get a standard holley to work.. and ended up opening the bores on a carb'd intake manifold to get it to work... it should clear the stock hood with a drop housing air filter like we use on our latemodels.... but won't be sure til we put the carbbed motor in... if you want whiskeysix6, I can let u know how mine works once my roller rockers get here and we get the carbbed motor buttoned up and in.... or I could take pics of the carbbed 2.8 I have in a race built s10 this weekend.

hotrodhonda02

As far as dizzy... try finding a vac/mech advance dist for a 84 camaro... run it on a msd box... it's a Lil tricky with the wiring but basically the ignition pickup is the magnetic pickup inside the dizzy... again when I pull mine apart I can take pics before putting it in the new motor if that would help...

Gfunkill

@Am91-Fortunately for now, my mpfi is working ok for me.
Unfortunately, if I wanted to buy that intake setup (I've eyed that particular one for a while) I have no expendable cash.
But thanks for the offer.

And on a side note-whenever this motor goes to Chevy heaven, I think I'll go 350. I know that's sacrelige on the v6 forum, but, (hopefully) that's a long way off.

cosmick

I have a '94 with the 3.4, it's DIS and OBD1.5, and it has a chronic misfire that nothing helps. If I wasn't about to do a 4.8L LSx swap, I wouldn't be trying to retrofit an old carburetor, I'd be stepping up to the 3500 heads, the FWD 3400 intake and ECM, and those 3500 heads outflow, with no porting, what your 3.4 heads could flow if max-ported by Mondello himself. Older tech isn't a solution, it's a crutch. A rotten, termite-infested crutch at that. Getting the 3500 stuff from Pick-N-Pull is cheaper than a new Edelbrock intake, plus a new Holley 390 carb, plus a non-computer distributor, by several hundred dollars. Why spend more to get less power, less MPG, worse driveability, and shortened engine life?