I've searched the forums and found adapter advice, but none of it seemed to be talking about stock carbs and stock engines. I have a '65 Chevy C10 with a bone stock 230 and a Rochester B 1bbl carb. The B needs rebuilt before I can drive it again. I also have a good small bore "65 Rochester 2GC leftover from another project. I was considering buying one of those cheap $20 adapters and mounting the 2GC. Its going to cost the same either way, but the 2GC looks like it would be more fun. The linkage seems like it would work with a simple piece of flat stock. The only real hassle would be the choke and I could deal with that later. Would the small bore 2bbl be too much carb for a stock 230? Has anybody had any luck with the cheap adapters?
Yes, the cheapo adapter will work. No, on a stock 235, it's unlikely you will notice any difference. Maybe, a rebuild kit for the 1-bbl doesn't cost any more than an adapter. Only reason to change is if your throttle bores are worn so much the idle is gone. jack vines
The two barrel MAY be an improvement over a worn-out Rochester B; it will not work as well through the adapter as a Rochester B in good condition without adapter. If you follow NASCAR, think of restrictor plates. Jon.
-------------------- Probably sized just about right. Both OMC and Mercruiser used 2GC Rochester 2Bbls on thousands of thier marinized 230 and 250 inch Cnevy 6's. back in the '60's and '70's and they worked well. Mart3406 ==============
Yup, you convinced me. Not enough bang for the buck. I'll rebuild the old one. While I've got it torn down, is there any chance of getting a little better performance out of the 1bbl?
On a stock six, unless you do some significant modifications, very little to be gained by modifying the carb. If it needs rebuilding, by all means, do so. A good electrical tune-up (don't forget spark plug wires) will probably yield more performance than trying to modify the stock carb without other engine mods. Jon.
....and keep in mind something my grandfather told me many years ago: "Nine out of ten carburetor problems are in the distributor".
-------------------- And sadly, probably only just a decade or two later - if that even - some passerby will come across your memorial, stone, read it and walk away scratching their head, wondering "What is 'carburetor??? ' - and - "Who was this distributor'???" !!!! Mart3406 ===========
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