i have bought a 327 turbo fire i was told it was rebuilt not to long ago prob is sat under shed with just a tall roof carb was left open so i pulled apart and found it was .040 pistons and look to be new lifters and bearings with not much run time on them well i cleaned engine with brush and kerosine but do too no oil plus dust and if any rain it was sized used marvel mystiery oil and got it un stuck but theres rust on the cylinder walls what should i do someone sail emerycloth and oil maybe tear down and reglazed?