304 carb tuning

[joey]

I've got a 304 in my CJ7 with an edelbrock 600CFM (#1406) carb and performer intake on it. Besides that, the engine is basically stock. Since I've owned it, the thing has been running rich. When I goose the throttle, I get a puff of black smoke and after driving the Jeep for more than 100 yards, I reek of exhaust. :drunken:

I rejetted the carb yesterday using .092 jets and .073x.047 needles - 1.5 stages lean, and really didn't see any difference.

Can anyone suggest a starting point for tuning this carb so that I won't smell so much raw fuel in the exhaust?

Thanks!

[jeepsr4ever]

Screw the two front mixture screws on the front of the carb all the way in then work them out 1.5 turns and start there.

[joey]

Today was 10 times better. It still smells like there is a little too much fuel, but going 1.5 turns out sure did make a difference. I had the screws out about 2.5 turns initally. I'm going to screw them in another half turn and see how things fly.

Muchas gracias! :t: