Having the same problem. Surges so bad its hard to get it in gear. Idles (but surges bad) at 2200-2400 but then its harder to stop the car after burnout or backing up. Brake pressures are good. Pro mod, Bruno, Neil Chance convertor, Lenco 3 speed. 526 BAE Hemi, CFH heads, Kobelco HH 29%, Rage 18 GPH pump, Mag 44 at 28*. Pump PSI is about 45# @ 2200RPM port nozzle is "0" so I don't think they are leaking at idle. Idle check is 8#, BV leak is 80%. Port check pressure opens at 8# with a stiff spring. JBR 4 blade injector is .012 all the way around the blades. EGT are all around 4-500* with the exception of cyl 1 (6-700ish) and cyl 4 is (4-500ish) Flow meter shows less than 1 at idle. We have an adjustable air valve on the BV as well as have pulled lean out plugs in the hat. Turn the air vale all the way open and pull a 5/16 plug and it cleans up very very slightly. I would assume the change should be drastic with such big openings. We have had idle check PSI everywhere from 4 to 12 PSI without much difference. BV from 84-76% without much difference. Changed hat nozzles to ones with out air bleeds (saw no difference) also reduced the hat nozzle area down some. (saw no difference). Changed timing to 30 and it cleans up and idles better. (they tell me 30* is to high to be safe.) When you push the trans brake button to stop the trans the surge gets really bad, let off it goes back to just bad. We have an MSD grid that we have retarded the timing at launch- release of the button, and also set it up with no retard. Engine still surges really bad when button is on, bad when its off weather we retard the timing or not. Breather tubes on valve covers are open. We are trying to get it to idle at 2200 ish with no surge and 28* timing. WHAT THE HELL ARE WE MISSING... Damn this is frustrating. Thanks for any advice.