Advice Needed - Can't Start Rebuilt 273

66fs---I did a comp check. Here's the numbers...

#1 - 115 #2 - 145
#3 - 115 #4 - 135
#5 - 140 #6 - 145
#7 - 125 #8 - 135

All cylinders except #1 and #3 jump past 30lbs on the first pulse....it takes #1 and #3 about 3 pulses to get to 30lbs. Bear in mind, this is a brand new rebuilt engine, so that may affect the numbers.

winstoninwisc---the rockers are loose when that cylinder is at TDC...in fact they are probably double the correct lash setting at the moment. I don't think they're holding the valves open at all. Timing chain is brand-new dbl roller.


EDIT---Another thing I did was rotate the engine, by hand, so that each cylinder was at TDC according to the firing order and checked the respective rockers. They all check out being loose, intake and exhaust, so I believe the cam is ground correctly as all the comp strokes showed up at the correct time....not a reverse-ground or misground cam.