Hello everyone ! I have a 2010 Challenger RT auto with 95k miles and 55k on a new engine. Mods? CAI and oil catch can. Magnaflow mufflers. My car seems to bulk while driving at a constant speed 35 mph saying through city or residential areas. Maintaining speed at 35 car wants to jerk back and forth as you gently left off the accelerator. In the old cars i would swear it was a vacuum problem. I’ve cleaned out the oil catch can and retightened the fittings. It seems to get better but then worse. I’ve tried throttle recalibration with moderate success. I’ve cleaned the MAP sensor as well to same amount success. Better than back to annoying. I am 18k since the last tuneup and 33k since the dealer changed transmission fluid and filter. I have checked for codes with scanner and there are none. Just kinda annoying. Driving auto stick makes it better at times. Anybody else have this issue?