I got my motor from a guy for $300. I heard it run before i got it. It ran great. I got it home, cleaned it up, painted it and while on the stand i put a brand new oil pump in it (Sealed power hi vol std pressure SLP-224-41128), cal custom oil pan, water pump and new timing cover gaskets. After dropping it in the car i got her fired up and ran great the first weekend. Had it running for about 4-5 hours, went around the block a few times. The next weekend rolls around i went out and fired her up, the top end started ticking really bad and my oil light was on. So that brings me to today... i popped the dist out, drained the oil and changed the filter and dumped in about 2 gallons of kerosene and ran my 800 rpm drill on the oil pump for about 20 min, drain some out and added more and ran the drill again. As the drill was running i pulled the breathers on both sides and seen it running under the valve covers. Drained the kerosene and changed the oil filter (Motor-craft FL-A1) again and dumped in fresh oil (Valvoline 10-40 conventional). Ran the drill again and turned the key on and the oil light went out when the drill was on and came on when i stopped the drill. Put everything back together fired her up ran great... till she got hot then the top end started ticking again.... What did i over look?