[TonyLoz]

Thanks for the note. The idle holder is a 120, I am picking up a set of small drill bits tonight, I am thinking of changing it to a 100 (or 1mm I think)... I sync'ed the carbs and they should be good, I will check them again. Rechecked the timing and added another 2 deg, 18 deg at idle and 36 deg at about 3200RPM.

I read an old stream about the popping, figured I would give it a try, opened each of the idle mixture screws about 1/2 turn. Popping is now gone, I am thinking this is just covering up another issue. I will play with jetting a little and hopfully can go back to the orginal 1 turn at the idle mixture screws.. It seems to clear out at highway speeds 55-65 MPH... This is the first time I had driven a Cobra, total of about 60 miles on it now, what a friggin blast....

I did order the float level gauge and will confirm settings as soon as I have the tool

Thank you everyone for the info, I will follow up with my finding.

Later and thanks again
Tony Loz