Dies on throttle release
I recently replaced spark plugs, spark plug wires, rotor and cap, and installed new Accel Ignition Coil. It purrs like a kitten (technical description, idles nice and smooooth). When I blip the throttle it's fine, RPM increases good, but when I let go of the throttle, it stumbles really bad and almost dies. The idle manifold vacuum is 20 InHg at around 800 RPM. The only DTC is 55 as I disconnected the battery, no other codes. I am the original owner and only have 30,000 miles on it. Thanks for any suggestions!