Just some nitpicking on my part...
The press release here states:
Stage zero up to 450 HP (carb approval pending)
Stage one up to 500 HP
Stage two up to 525 HP
Stage three up to 550 HP
The GTM website states:
Stage zero up to 450 HP (carb approval in progress)
Stage one up to 500 HP
Stage two up to 550 HP
Anyone know which version above is correct?