[ford3]

dont trust the timing marks of the crank damper, if im not mistaken they are a two piece damper with a rubber insulator between the two metal pieces, over the yrs the outer part of the damper will creep around the inter piece, the one bolted to the crank because it slips on the rubber insulater, throwing the timing marks off, pingining on hard excelleration usually means timing is to far advanced, back timing off about two degrees, to find top dead center pull # 1 plug, put a wooden dowel in hole and turn engine over by hand till the dowel stops rising, that should be top dead center unless the timing chain is pretty streched, to check play in timing chain, take dist cap off, turn engine over by hand then turn the opposit direction, see how far the crank turns before rotor moves, turn the engine in the direction when running then back it up, that takes the play out of the chain