Got one on my 600cfm holley on my 13b. Deal is....I can get the damn thing to idle fine and I can get the mains set right but I have a horrible lean studder in the intermediate circuit from like idle to about 2000rpm. I either have to pet the accelerator or stomp on it. Any slow acceleration will result in popping and bucking.



Unfortunately, I bought the carb pre built from Rotary Engineering and have no real experience with the system. Anybody familiar with this system? Rotary Engineering seems to have fallen off the planet. They are not responding ot phone or email.



Thanks gents,



craig