Cranks but will not start

Blown head gasket was the initial problem, so it ran a little. Removed cylinder heads, had them worked over at a machine shop, new gaskets, seals, timing belt, plugs, wires, cam sensor, crank sensor. Put it back together, cranks but will not start. Checked fuel pressure, 35 lbs. Pulled spark plug wire out of coil and turned engine over, spark is present. Squirted a little fuel into intake and still would not start. Changed cam and crank sensors. Pulled covers off the front of engine to double check timing marks, cam timing lines up perfect, but not wanting to turn the engine over by hand eighty four times to line up the crankshaft mark and the cam marks on the timing belt. I took the timing belt off and started over, lined everything up again and still would not start. Checked tooth count on belt thinking maybe it was wrong but it is the same as old one, 281. Any help would be appreciated. Thank you!