Quote:
Originally Posted by old51sedan
I just installed a 292 in my truck in place of the 250. It I believe came from a bigger truck and may have been a replacement engine. I say this because of the fact that the pad by the dist. has no numbers/letters at all and it also had a governor on it. After being rebuilt, I installed the intake and exhaust manifolds from the 250 on the 292, mainly because the carb was completely rebuilt and the manifold bolts had all been replaced. Have not fired her up yet, but I don't anticipate any problems with it. I did have to find a different PS assembly for it as the 250 was different.
I don't see any reason you couldn't use the original carb, just get a couple of shorter bolts for it. Linkage should not be a problem.
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In your case, the extra 40 cubes
might mean a different carburetor calibration, like the jet and metering rod. Not that familiar with Monojets, but GM made dozens of differently calibrated carburetors.