[alanwoodieman]

V8 or I6? sounds like stuck rings, I am working on a 49 truck that has sat for 18 years, soaked the pistons/rings with ATF and acetone, when I let this mixture sit for 10 days in the engine compression started coming up, when cold it has 110 to 120 lbs compression. running it has 18/20 vacuum with a slight fluxation so started pouring mmo down the carb and added some to gas valve finally freed up and sounds good. timing is set with the distributor off the engine but look on ps side for a screw with a plated--loosen scre and move plated up one line at a time