carter thermoquad help

I tried an 625 AFB first . No top end power, would not idle down low, almost no noticable difference when the secondarys came on. David and I determined that the way my engine is built it needed more fuel/air . The TQ works great. Plenty of power, awesome secondarys, and will idle @750 when warm with no chance of stalling. Also it's not beeded just silver paint.