Advice Needed - Can't Start Rebuilt 273

It's kinda hard to do, unless you have a better stand than I have ( I have to pull the head)
Put the indicator in # 1; find TDC; degree the wheel to 0.
now put indicator on pushrod, or if you can , on the intake lifter; get reading of duration @ .050. Same with exhaust.
Now use the formula on the wheel, or in a book, and calculate the centerline of the cam. Should be between 108 to 112. If not, cam is clocked wrong.

or pull the timing cover off, and check.