It could be the timing chain/sprockets marks are not lined up correctly or the valves are not adjusted correctly.
theres four things a motor has gotta have to run regaurdless of anything anyone says..........air . fuel, spark, and compression you gotta have all four or you ain't gonna get it running
The smaller combustion chambers would increase the compression ratio a little, and the smaller valves would lower the torque curve a little, but also reduce the peak horsepower available.
it can be lost of Compression in the Motor....
That would be a destroked motor, and would result in a 285.
When you run a compression test, you are really looking for a cylinder that is way out of line with the others. 40, or 50 lbs lower than the rest, would indicate trouble. As for a number, well there is a lot that contributes to the actual answer. On my race engines, I come in as high as 180, to 200lbs. A motor with 80,000 miles, and 8:1 compression, would be lucky to put up 100lbs.
Not sure, i would say oil pump or cam bearings
Depends alot on the year, and how many miles on the motor. Anywhere from 80lbs, and up. What you are really looking for, is a difference. One cylinder 25, or 30 lbs lower. This would indicate a dead cylinder.
Does it have fuel/spark/compression?
A guess would be 5-600lbs
Bad are burnt intake or exhaust valve. Pistion rings broken, Burned pistion. Blown head gasket. That is all that would cause no compression are a loss of compression.
The engine would not run. The engine would lack compression.
motor mounts?