Just installed a New Weber 32/36 onto the F145, idles better then ever...but...when I step on the gas the engine boggs down and the carb backfires.
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Just installed a New Weber 32/36 onto the F145, idles better then ever...but...when I step on the gas the engine boggs down and the carb backfires.
The factory F motor probably won't use more than the primary side of that carb until after 3K rpm. If you dump open the secondary side, under 3K rpm, it's likely to fall on it's face if you open them too fast. If you lean into them as the tach climbs past 3500, and be wide open at about 3800-4000 rpm, I bet the stumble goes away.
You a funny guy, an F motor spinning past 3500 rpm
I agree, it sounds like too much too soon.
Gotta remember you are dealing with a 40's technology motor (GM design) that was kept alive for a reallllly long time. Putting a "big" carb on a slow turning torque motor that originally ran a small single barrel is going to be a little bit of a challenge to "tune" correctly. As others have said, get the info and start addressing it methodically and you will be happy. I don't think you will happy with it any other way.
Jack
Gave up on the Weber, complete disappointment, could not even get close to getting it to function. Will probably sell it on EBay. What a waste.