The Monojet has a metering rod sitting in the main jet. When you step on the gas, the rod is raised. I'll bet it's adjusted a bit too high which makes the jet, in effect, too large. It doesn't hestitate cold in the morning when I accelerate w/o choke.

Then I'll look at the idle mixture adjustment. There are many turns required to go from the chuggings of too lean and too rich. I read where it sould be set just this side of too rich.

I have a Carter YF in the basement but the Monojet hasn't given me many problems.

Thanks!

1948 3/4-Ton 5-Window Flatbed Chevrolet

34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.