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We have cnc porting performance kits that go from 98-103-113-123 torque and rev 2 to 4 seconds quicker than other kits we have tested. Non of the kits we have tested remove engine heat like ours do, we typically take 30-50 degrees temp out of the engine with our volumetric efficiency. Our stage 2 with SE 203 cam and 9.5 to 1 will yield 98 torque, our stage 2-1/2 with 37 cam and 10.5 to 1 103-105 torque.