3 2 BBL setup

[blazemobile]

Has anyone every seen a 3 2 BBL setup on a carbed 4.3L? I saw one a long time ago before I even had a blazer. If anybody knows where to find them, that'd be cool. I came across a cheap s10 that I might put my 4.3L into. and I thought it'd be pretty cool to have a 3 2 setup. just cruisin with 2 BBL then stomp on it and have all 6.

[Sparky2263]

It would require a custom intake as no one ever made a 3-2 for a 4.3.

Also, the Rochester 2 barrel is rated at 350 cfm. That would give a total of 1050 completely drowning the motor. However, the end carbs being vacuum actuated, with a very strong spring and restricted vacuum signal, it could be made to work.

Other than cool factor (which would be high) I'd consider it the wrong way to go.

[blazemobile]

thanks, sparky, for the advice.

right now my 4.3L is TBI and I want it carbed w/ no computer. should i get a spread bore 4BBL or a square bore 4BBL. would a quadrajet be good on it too? also, I'd need another kind of distributor. what kind would that be?

Could anyone tell me what all I need to get to change from fuel injected to carbed. I think I just need an intake manifold, carb, and distributor. And will hedders work on a 2wd that were on a 4x4?

[T Man]

you dont even have to buy a new intake manifold. They make adaptors for carb to TBI, but the TBI intake manifold is junk. I owuld go with the edel 2114 and throw a 500cfm squarebore on it. Dont go with the quadrajunk, get a nice weber, or edel. the tuning on those is so much simpler. As far as ditributor, you could re-use yours, i believe the wires that go to the computer need to be hooked up to a 12v source with a 700ohm resistor wired in, but im not for certan. Your fuel system also would requrie attention. I fuel pressure regulator plumbed in would have you set. (TBi is around 13-15psi, carb needs no more than 8psi)

[blazemobile]

how about this as a carb...... http://store.summitracing.com/default.asp?Ntt=550+cfm+carb&searchinresults=false&Ntk=KeywordSearch&DDS=1&N=115&target=egnsearch.asp I don't think thats too bad of a price. Oh and I'm going from TBI to carb.....not carb to TBI.

does anybody have a set of chrome valve covers for a 4.3L for sale?

this may be a ridiculous question but I saw a can of chrome spray paint for "exhaust manifolds". Is this stuff worth $5? or should they be paying me to take it from them?

[T Man]

as far as the carb, you would be better off with a 4bbl 500cfm than a 550 2bbl. I realize you are going from tbi to carb, thats why i said "They make adaptors for carb to TBI" instead of TBI to carb

[blazemobile]

ooops i had the wrong link there....lol....search part number EDL-1403 on summit. my computers being dumb with links....the first link had a 2 BBL carb for $1000