A cranking compression test is definitely in order.
Warm engine, throttle wide open, all plugs out, hot battery and good starter for the most repeatable results.
Probably should double-check the camshaft timing. Just dot-to-dot on the gears doesn't cut it.
Most likely undergeared for your application.
I'll just about guarantee that you're too rich in the secondaries.
HTH!
__________________
Regards,
"455HO" Lloyd
2008 GMC Sierra Denali 2WD Crew, L92 6L80E, Silver w/ Ebony guts, 14.26 @ 98
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