[antares]

Because that's all ya gonna get. Welcome to the Gold Card ITB Club. My advice is sell the ITB set-up to someone else ( who does not have access to a dyno ) who truly believes they too are gonna get 3.6 performance h.p. by throwing $ 6k into a 3.0 or 3.2. without first gutting the engine and spending another $ 10k on internals ... or purchase a 3.6 and put ITB's on that. The more volume of air the engine can take in per length of stroke or number of strokes in a given time frame the more fuel it can efficiently accommodate and the bigger the gains in h.p & torque. Changing nothing but a cam or method of fuel delivery will deliver about the same amount in gains.