i have a great idle, driving daily. WOT has no power. Light gas pedal is okay and it more it will surge its way into a throaty sound with power. Past that point it is stumbling. Surges like missing fuel or too much air. New fuel filter on, fuel pump is good. Going to pull it Sunday and check metering rods and jets. Running like lean with heavy pedal. Driving very easy at the moment. Rebuild date was 2016, so it sat on the shelf a while. Also might redo intake manifold gasket. Friend did it when we changed engine and I wasn’t thrilled with how he did it. Pretty sure I am getting too much air somewhere. Vacuum at idle is 18” Hg.