super rich when cold

[Rods67Cuda]

I haven't adjusted the 770 Street Avenger from box-condition yet, but the guys at work say that when i'm leaving work in the morning, they cry from the rich fumes from my car......
it apparetnly doesn't do it once it's warm, but whenit's time to go, it's tome to go, and i jump in, fire it up, and take off in the morning....usually, it;s warmed up by the time i get a mile away, but i've heard it puffs black and stinks BADLY on the way out the parking lot.......

will a choke really richen it that much??....it seems to run best cold with the choke held wide open.

[pishta]

A closed (activated) choke increases the vacuum around the venturi boosters a whole lot. That means you are sucking alot more fuel with less air, so your A/F ratio is off the chart. What climate are you living in? In warmer climates the choke is not even mandatory. If you remove the choke plate, but keep all the linkage in place, youll still get the cold start idle setting but wont get the RICH fumes out the pipe, as you stated it runs better with the choke off. You may be jetted fat from the git-go.

[MY340]

Choke not opening fast enough or sticking will cause excessive rich condition. Get it adjusted properly or run without it.