Originally Posted by ASteve
86...that's how I checked mine a few weeks ago...
OP here's some good info...
scroll down for float adjustment...
Thanks for the link. I watched Holley's instructions for setting the float adjustment on a running engine.
I pulled the inspection port screw on the side and gas came out of the carb; obviously the float level was set too high. I backed out the locking screw and turned the adjusting nut clockwise approximately 3/4 of a turn. I then reinstalled the inspection port screw on the side of the carb and attempted to start (with the choke plate partially closed).
The carb didn't spew gas out the top like on every other occasion.
The engine ran very poorly and seemed like it was on the verge of stalling. I then blipped the throttle and the RPM went up to a very high setting. I attempted to actuate the choke linkage lever to open up the choke plate and drop the engine RPM. It didn't seem to have much of an effect on the RPM, but the engine cut off shortly there after.
To further confuse the issue, when I had attempted to start earlier and had the geyser of gas shooting out of the top of the carb the engine seemed to be running halfway decently. At one point I pulled the fuel inlet line and let the carburetor run with the just the gas in the float bowl and it seemed to run strong until it consumed all the available gasoline in the bowl. Other than dinking around with the float level adjustment nut I haven't changed any other settings.
I poked around in the HolleyTV video links, but all the tuning videos are predicated on a normal running carb with only minor fine tuning. So, is there an initial setting for the engine idle screw the carb should be at? What base line adjustment should I start with to get a "normal" setting to start with?