48 IDF jetting.

[Caprimaniac]

Hello, Gary.

Yes, icing might have been a possibility. But; before this last autocross I tested if the carbs were synced. They were NOT! I di a synch in may or something- either this was not good enough or it'd wiggled out of sync during summer. I also had to clear one of the idle circuits.

The week before I'd changed back to the old, small jets: 140/ 200 (fuel/ air).

All this made the transition really smooth; hesitation around 3-4000 were gone. Although, I suspect it to be a little too weak at higher RPM.

Wiil get new jets and maybe a set of F14, maybe 15?, emultions tubes next season.

Also: By using 2 x idle stop screws, the got idle better. But, it fluctates. Indeed. First 1000 at cold.... then up to 1200 at warm.... then after driving it's down to 700.... So; any tip on this problem would be appreciated, indeed.

Will clean idel system completely & hopefully it will run on all cylinders with all CO- screws one round out. Right now some of the CO's are random; turn the knob until the cylinder fires.