CarburetorsCarb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.
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If that is all you did, it would be a waste. If your v6 can't benefit from the additional air flow a 4 barrel carb will provide it won't help--it may even hurt. If you have a modified v6 that revs really high and can benefit from the added air flow, then sure it will help.
It's all about the combination, not one or two parts of the combination.
I actually looked back into this, way back when I still had a 2.8. Why?
Well, my 2bbl carb was SHOT, and for some reason (availability?) a rebuilt 2bbl carb cost about DOUBLE that of an E4ME qjet.
If you could get a 4bbl intake for a 60 deg V6 (2.8/3.1/3.4), you could make it work. Just be careful about which vacuum lines go where, and you'll have to come up with a way to bypass the EFE heated grid. Wouldn't be too bad actually.
Now, whether or not the secondaries would ACTUALLY open is another question entirely .
I'll make a deal with you guys!
If you can find a 4bb manifold for a 2.8, 3.1 or 3.4 I'll buy it and rip my FI out of my blazer in 5 minutes and give you all the info you would ever need on swap and setup.
SSC
<font face="Verdana, Arial" size="2">Originally posted by SUPER-SPORT-CHEVY: I'll make a deal with you guys!
If you can find a 4bb manifold for a 2.8, 3.1 or 3.4 I'll buy it and rip my FI out of my blazer in 5 minutes and give you all the info you would ever need on swap and setup.
SSC </font>
BTW if its a 4.3 your talking about yea alot more power.
I believe Edelbrock makes a 60 degree (2.8/3.1/3.4) four barrel intake and a 390 cfm Holley would work. Try going to s-series.org and get on the v6 message board, I know there's a few 3.4 Camaro swappers into former 2.8 trucks using a four barrel on there.
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Originally posted by SUPER-SPORT-CHEVY I'll make a deal with you guys!
If you can find a 4bb manifold for a 2.8, 3.1 or 3.4 I'll buy it and rip my FI out of my blazer in 5 minutes and give you all the info you would ever need on swap and setup.
SSC
they have them in the gm performace parts book.
__________________ 88 Formula 5.7 TBI in the works.
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