Very few modification in and of themselves will result in dramatic performance improvments. It all comes down to the combination of parts. The manifold by itself now will yield 10-20 hp, but will allow your future heads to live up to their full potential. A stock intake with good heads will really choke up the intake path and rob you of power.
--nathan
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'91 GT, Coast 347, 9.5:1 compression, full intake, Wolverine 1087 cam, exhaust, Keith Craft ported Windsor Jr. Irons (235 cfm intake, 195 cfm exhaust), AOD, PI 3500 converter, Lentech valve body, 3.73's (4.10's in the works), and Yokohama ES100's out back.
Daily Car: '04 Infiniti G35 Sedan 6MT
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