i stand corrected....
"Does Jackson have different "race" versions?
Yes, Jackson Racing has an upgrade to their basic 5 psi race version. It consists of a different pulley (3.4") that increases boost from about 5 psi to 7 psi. It also requires a different Hondata ECU reflash. Jackson says the 7 psi race version makes over 280 wheel hp. See 5 vs 7 psi dynos. Those who already have the race version can get the pulley upgrade for $149 and the ECU reflash for free (It is free from Hondata even if a race version customer chooses not to upgrade to the new pulley. See Hondata release). In a quest for more power yet, Hondata prototyped other combinations, such as a 3.2" pulley and 9 pounds of boost with 550 injectors, and they are also testing 650 and 750 injectors."
-B