3x1 carb build

[birdkilla2k1]

I'm looking for some help with building a 3x1 for my 292...is having the correct "family" of carburetor sufficient, or do you also need the part number to match? Currently, I have a Rochester MonoJet, part number 7028017, and sourcing 2 more, or even three is not proving to be very easy.

[mike16]

the 292 carbs are slightly larger than the 194/230/250 carbs. in terms of cfm. The 292 throttle plates are slightly larger in diameter.

The 194-250 carbs are more plentiful. three of them should flow plenty of cfm's for a 292 aplication.

There is a club, Inliners international(?) that caters to the six cylinder croud. Cliffords sells alot of six cylibder performance goods too.

[Grumpy old man]

Go old school when setting up multi carb intakes use an Edelbrock 4025 Uni -Syn $29.99 carb balancing synchronizer Or the Empi 5746 $21.99 which is basically the same tool .

[special-K]

One carb does the trick on a 292, so I'd go with the smaller displacement Rochester carb. Are Edelbrock carbs old school now? When did they start selling carbs? I think of them as modern. Do they offer someone's 1bbl? Sorry for my ignorance, but I always thought of Edelbrock manifold/Stromberg,Solex,Bendix,or other old name as old school. Didn't even know they did a 1bbl.

[Grumpy old man]

Originally Posted by special-K

One carb does the trick on a 292, so I'd go with the smaller displacement Rochester carb. Are Edelbrock carbs old school now? When did they start selling carbs? I think of them as modern. Do they offer someone's 1bbl? Sorry for my ignorance, but I always thought of Edelbrock manifold/Stromberg,Solex,Bendix,or other old name as old school. Didn't even know they did a 1bbl.

It's a carb synchronizing tool for setting up/ balancing multi carb intake engines , Edelbrock is just a reseller of an aftermarket tool originally designed for the multi carb European / German ( VW ) engines

[geezer#99]

[QUOTE=special-K;. Are Edelbrock carbs old school now? When did they start selling carbs? I think of them as modern. Do they offer someone's 1bbl? Sorry for my ignorance, but I always thought of Edelbrock manifold/Stromberg,Solex,Bendix,or other old name as old school. Didn't even know they did a 1bbl.[/QUOTE]

Of course the eddy carbs are 'old skool'!
They're just carter afb's which have been around since the beginning of time!

[birdkilla2k1]

I guess my real question is since I have one Rochester 7028017, do I HAVE to get two more 7028017's?

[geezer#99]

Originally Posted by birdkilla2k1

I guess my real question is since I have one Rochester 7028017, do I HAVE to get two more 7028017's?

No!!
Get three that look the same and jet them as needed.

[birdkilla2k1]

That's the answer I was hoping for!

[birdkilla2k1]

With a progressive linkage, are there any modifications I would have to do to these carbs once they're mounted?

[geezer#99]

You might need to plug off the idle circuit's on the end carbs.

[special-K]

Originally Posted by Grumpy old man

It's a carb synchronizing tool for setting up/ balancing multi carb intake engines , Edelbrock is just a reseller of an aftermarket tool originally designed for the multi carb European / German ( VW ) engines

Ok, thanks for clearing me up on that. Didn't catch the synchro tool bit. I ran dual Weber 44s on a '56 bug I had (first car) and tuned by ear and results. More better way to go with the right stuff.

Originally Posted by geezer#99

Of course the eddy carbs are 'old skool'!
They're just carter afb's which have been around since the beginning of time!

That is correct. But we are talking single throats. I just pulled the Eldy Q-Jet copy off my '72. Rochester going back when heads come back. Off the two carbs I see the Rochester as old school and the Eldy as a new replacement. It's new school to me on a '72 since they didn't offer carbs till it was an old truck.

Originally Posted by birdkilla2k1

I guess my real question is since I have one Rochester 7028017, do I HAVE to get two more 7028017's?

I think it's best to have three same carbs. That's what I would do. Besides, they all will have same hook-up for linkage, match in appearance, and make service parts more simple. Would be cool to set up 2-stage with center full time and two and three kicking in for the big power demand.

[birdkilla2k1]

I should have three of the same, if not, three very close models (so far, I've now got two 7028017's, and possibly a third)...to me, it seems like the 702 is the "family", and the last four seem like some type of unique designator...I found a guide for determining what model went on what motor