Just finished the test (twice) on this 56 235 and:
1 - 85
2 - 90
3 - 90
4 - 95
5 - 85
6 - 70
Motor starts and runs fine, a little bit of smoke but not ugly, have not had a valve adjustment in 4 years with approx . 1500 miles driven since last adjustment. Time for rebuild? Or adjust valves and test again. This motor is original and probably has never been rebuilt or out of truck. Probably set a long time before I bought it. Thoughts??

Dale