Carb change, good and bad.
My 4.2 YJ is nuttered (pre-smog distributor), HEI ignition, and aftermarket exhaust manifold (not sure on what brand or type).
Last year I took out the computer and carter BBD carb and installed a weber 32/36 because the carter wasn't performing very smoothly. The idle was unstable and I had to clean the venturi cluster a few times when she stopped providing fuel for the idle, yadda yadda yadda.
After the nutter and swapping to the weber the engine performance was all around smoother, BUT, it came with a trade-off. I know the 32/36 is supposed to be a more fuel efficient upgrade, but off the line I feel like the weber has 1/2 as much power as the carter did. The weber seems to work well in the higher rpm ranges of each gear, but is not very powerful down low. Anybody and everybody (except for semis) beats my off the line when the light turns green.
I remember reading on a weber site (after I had already purchased and installed the carb) that for a 4.2 that has had modifications like mine has had the 38 carb is the better choice and it's close to impossible to get the 32/36 to perform to it's full potential. Any thoughts on this? Anybody else have a 32/36 on a 4.2 with upgraded ignition and exhaust manifold?