Scott, did you pull number 1 plug out and make sure you are in time, you could be a tooth off on the timing. another thing I recently ran across was when a friend of mine rebuilt his motor he had the valves to tight and was not getting any compression, losened the valves and it fired up. Keep us posted, if you don't have it running by the weekend I would be happy to come by and give you a hand.
Ray Hedden