[lateapex911]

John you and me both buddy! I have the exact same issue. Just cruising down the highway, all is sweet, but tip in just a little and it goes "..brgrgwbbrgwgwbrgw"..sounds like it's trying to clear its throat.

I've swapped jets up, down, meesed with a Unisyn, followed the "Easy 94 steps to Weber Heaven Program" ,and still the sme thing.

Rick Deman (of Deman Motorsports, a firm with a fabulous rep) built the motor and HE spent over an hour swapping jets and got the same result.

I mentioned this to a fellow SCCA racer who runs sidedrafts, and he said "emulsion tubes". OK...not sure what about them though as we were doing some other things at teh time.

I took my car on a fun run the other day, and after about two hours of driving, suddenly, for some strange reason, it ran fine. No popping, burping or gurggling. For a whole 5 minutes until we stopped. Upon start up the devil had returned.

Which makes me think....
1- throttle shafts? could mine have heated enuf to seal a leak? My issue *seems* to be right bank only.

2- A gasket leak or such, and the heat expansion sorta sealed it? (the temp was 100C)

3- sounds crazy, but would valves too tight cause such a thing? naaa...right?

I need to set the floats, but I have no guage and don't know the proper setting. I do think they look reasonable, (I know, thats the kiss of death!) and I did adjust one to match the left ones, but it made no difference. I do need to get a regulator and guage.

I hope we get some ideas here so I can learn as well!