To all that I have discussed with: hooked up a mechanical fuel psi gauge at vaporizor, psi was ok but let sit overnight and psi drained off by morning. Checked for external leaks-nothing. Pulled air horn off and found main injector dribbling fuel into intake, also assist injector had a broken spring, r/r both items, relearn throttle settings, etc., but is still surging/hunting at w.o.t. Wiggle tests on wires during the problem, no change?