[DAVID GAGNARD]

I've tried to tune a number of Street Avenger carbs,all vac. sec. carbs with the same problem as yours on a number of vehicles including heavy 4x4's to lightweight cars..doing on the little "tricks" helped,but never completely got them right.....
I'd suggest a 650 Holley double pumper for your engine combo, you will not be disappointed.........

For some reason, the vac. sec. Street Avenger carbs I've seen never did run right no matter how much tuning was done on them...
Just my 2 cents on the subject....

David