Cylinder has spark but not firing..

I got it,, cool field test,,

thnx teringer
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Duey Roc .. you say the manifold locator pins are gone,, did you notice any marks where the pins meet manifold..

Where I'm going with this,, is I had a manifold that had been pulled down over the pins,, AND there were no holes in the manifold.. It bowed the manifold so it sucked oil/ leaked vacuum on the inside.. ( post 68 )

If someone has done it to that manifold, it may be bent,, ours was ,, so we put it in a press and flattened it.. ( Yeah, I know, NOT "recommended service procedure")

You said you welded a crack in that manifold,, what caused the crack ???

hope it helps