The roush blower is perfectly capable of giving you all the power the stock block can handle. You can get 450whp out of it with a pulley swap and a good tune, maybe the CAI roush makes. You will be fine. the intercooler kit on the 427r m90 is the same kit used for the Roush TVS blower so it will cool just fine. YOu will nee dsome sort of fuel systme upgrade for higher power though, BAP or GT500 system. teh roush cars only upgrade teh injectors, uses stock fuel pump.
Last edited by ShaneM; 05-26-2010 at 01:59 PM.