Well back on topic and away from horse members:
These are definitely the most accurate measurements, I refined my method yet again, returns the same results over and over and validated TDC when complete and was exactly right on the wheel:
Measurements at 0.04” lift:
IVO - 18 BTDC
IVC - 61 ABDC
EVO - 57 BBDC
EVC - 12 ATDC
Tappet Lifts:
Intake - 0.457”
Exhaust - 0.412”
Centerlines:
Intake - 111
Exhaust - 112
Duration:
Intake - 259
Exhaust - 249
Overlap - 30
Cam specs from the manufacturer
0.465 lift intake
268 duration intake at 0.04”
0.427 lift exhaust
258 duration exhaust at 0.04”
Remeasured the 0.006” as well
IVO - 43 BTDC
IVC - 75 ABDC
EVO - 75 BBDC
EVC - 37 ATDC
Duration:
Intake - 298
Exhaust - 282
Closing it up, these are good measurements that all jive when calcs are applied and repeatable.
They are symmetric profiles or very close to it, demonstrated by the centerlines, calculated and measured matching nearly perfectly.
Now you can directly compare the Megacycle
BC4 intake and BC7 exhaust directly to stockers.