[Kenth]

The sooty throttle plate tells me abnormal amounts of fuel is entering the intake.

Does it drip fuel from the nozzles at idle speed in gear (A/T)?
Are you using a new float and a new inlet valve?
Did you check for no more than 6 psi fuel pressure (5 psi prefered)?

Since the carb is a 1969 vintage the bowl bottom plugs would be the non-leaking style. Or?

[JMB36TA]

Originally Posted by Kenth

The sooty throttle plate tells me abnormal amounts of fuel is entering the intake.

Does it drip fuel from the nozzles at idle speed in gear (A/T)?
Are you using a new float and a new inlet valve?
Did you check for no more than 6 psi fuel pressure (5 psi prefered)?

Since the carb is a 1969 vintage the bowl bottom plugs would be the non-leaking style. Or?

I don't know if there's fuel dripping while it's in gear, I haven't had any helper in my garage to hold the brake down.

I got a complete rebuild kit from Cliff when I rebuilt it a couple months ago. It has a new float, needle and seat, primary and secondary metering rods, power piston spring, jets, idle tubes, and choke pulloff. I'm going to try the old power piston spring which may be softer to let the piston seat better? The jets he recommended are actually one size smaller than what I had. I should check the primary metering rods to see what the difference is in those too. If the jets were bigger than I'm assuming the rods would be bigger too?

Not sure what the fuel pressure is, I don't have a way to test it.