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Old January 28th, 2021, 08:37 AM
George Bongert George Bongert is offline
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Join Date: Jan 2013
Location: Oshkosh Wisconsin
Truck: Former owner Repowered by GMC 305 V-6, 1963 Chevy 30 Series SM420 Long Bed (9') Step/Fenderside
Posts: 166
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George Bongert will become famous soon enough
Default Re: Nick's old 61 4wd GMC Truck

Originally Posted by Jim A View Post
I think GM put the one barrel Holley on for a reason.
Mine has worked fine, if a little uneconomically, for fifty years.
Greetings, Jim!

There was a reason that GM went to two barrel carbs on on these engines, and that reason was for performance and increased power. A one barrel carb on these engines was a disservice to the performance of these engines, and the GM engineers finally realized their misguided mistake. Even the early Buick 231 C.I. V-6's used a one barrel carb, and were soon updated to the two barrel version for the same reason. They developed more horsepower, and performed better. A two barrel conversion to Nick's engine would be a vast improvement over that outdated one barrel setup!
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