Gabe, these are all good suggestions. Especially switching spark plug wires from one side to another, and spraying fuel into throttle body. However, unless I missed something you never confirmed spark at the plug. If this correct take off one plug wire, leave plug in head, use old plug and ground it to clyinder head and look for spark. If you see no spark then work backwards checking all your connections. I used to do Ho#%# basket cases for money when I was in college ( this was in the early 70's and it was actually quite lucrative and tax free) and if something wouldn't start it was always because of either no fuel, or no spark. Even if the lifters were too tight they would start, but sounded like they were laboring just to idle. One last thing have you got your cams lined up correctly? Hope you find it and please let us know. GoodLuck. CAHDBIKER