Originally Posted by Cat 1

I think this might be part of the solution... I haven't had a setup that didn't need this until the e-pressure test but I think it does the same thing by leading with pressure during acceleration. On most setups I can hear the engine - "shut off" during decel as the fuel comes back before the slowed down throttle opening. The sound is instantly noticeable as a different sound than most other glow or gasser setups.