Engine Surge While Stopping

you can go through them again with a torque wrench at 35 pounds. but that wouldnt explain why its doing it only when you are slowing down, unless you are loosing vacuum at the distributer and the advance is sticking. unhook and plug the vacuum advance port and the distributor and take it for a spin

Been watching for a bit and i think your on to something with the vac advance. Also what carb are you running and did they have the distributor out during the intake replacement?