Disappointing dyno results

The "cylinder" measured 65.6 ccs? (Maybe the combustion chamber in the head? And where do the pistons sit at TDC?)

The cam was "degreed" but then installed dot to dot? (Maybe it was profiled to check lift and duration, but the OP has never explained what he meant by "degreed" or how degreeing it showed the first cam to be the wrong one.)

The "secondaries" were checked to see if they opened all the way? How? (We talking about the secondary butterflies in the carb base, which operate mechanically, or the air valve up top, with the engine running at full throttle?)

Sorry, don't mean to be a butt, but WTF?
cyl vol = bore squared x stroke = 4.070 x 4.070 x 12.87 = 213.19026
213.19026 x 3.313 = 706.2993 cc

gasket vol advertised = 8.9 cc
valve relief advertised = 6.8 cc
piston relative to top of deck = 0.0
combustion chamber cc = 65.6
BDC vol = 706.2993 + 6.8 + 65.6 + 8.90 = 787.599
TDC vol = 8.90 + 65.6 + 6.8 = 81.3
CR = BDC vol \ TDC vol = 9.687:1

Cam was degreed and installed dot to dot.
Stood next to engine during pull to verify secondaries opened.