I’m looking for any experiences with Holley’s new Truck Avenger Carb. I’m currently running a Q-Jet and having some tuning problems. I believe the Carb is on its last legs and leaning out somehow. When cold, the motor hesitates and runs like a plug is fouled. (Just installed new Autolite 145 plugs set to .045.) The best description is similar to a stock 350 with a Q-Jet and put the throttle to the floor, hesitates, pops and then accelerates after clearing…. When warm under cruise throttle (2200-2900 rpm) it pings when accelerating to maintain speed up a gentle grade. I’ve also noticed some popping in the mufflers when accelerating from a traffic light after sitting for a minute or two. I don’t notice the ping when running 3000 and up. I run a 85 Blazer is an 85 with a 2.5 inch lift, 33s and 3.73 gears with a freshly built 700r4 tranny matched to this motor. The motor is a 383 with a 280 cam installed, LT1 heads, headers, duel exhaust, Jacobs Off ignition, Jacobs wires and an Accel distributor (mechanical advance with timing set to 28 degrees). The CR is 10.5 and run 91octane fuel all the time. Some will recommend moving to an injection system and perhaps that’s in the cards down the road. I just don’t want to throw another $1-2k at the motor. Thanks for you advice!