[KingLT1]

I believe that is the pulley they use for their 580-600whp LT4 conversion package on E85. The problem with a 2.7 is you won't have enough fuel system for even E60. The Lt4 supercharger makes peak power lower/tq in the RPM range compared a larger unit and that requires even more fuel demand. Either way ADM has a few threads floating around here with all the info you need.