Since completing my Charger I've been doing allot of tinkering with carberation, started with an 870 Avenger which worked great but liking double pumpers I switched to a Street Demon 850 DP and really like it. The problem is the idle circuit, any adjustment that equals a good idle and off idle performance results in a super rich idle. After reading dyno pulls from Hunts motor (much like mine) where he tested both an 850 and a 750 and only gave up 6 hp with the 750 I borrowed a Proform 750 from a friend. The 750 seamed really responsive to adjustments and offered a better idle mixture (I'm assuming because of the improved velocity), it also had a better feel in the pedal (not so stiff) and weighed nothing compared to the Demon which feels like a brick. I'm looking for a 750 DP that has adjustable air bleeds, is lighter in weight, has a nice feel (not stiff), electric choke and has to be of the Holley design like Quick Fuel, Demon, etc. Any thoughts or suggestions are welcome and by any means if one of you has one to sell let me know. Right now I'm liking the Quick Fuel Black Diamond.