Inliners International Forums General Discussion Hi Performance GMC Camshaft Advice

That long 60 isn't all from low power, I'd try varying the launch technique. You have enough low gear to almost idle out with no spin.
Just a guess: 110° LSA is pretty common for streetable grinds, so your E2 286° may be:
IO 35°
IC 71°
XO 75°
XC 31°
Overlap 66°
Installed 2° advanced

The E3 with the same (?) duration is more likely to be 108° LSA:
IO 39°
IC 67°
XO 75°
XC 31°
Overlap 70°
Installed 4° advanced