TPITuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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Mods in sig, car drives like a stock car. This was the second dyno tune Alvin has done with the 411 controller and he's very impressed with how it works.
I think long tubes are overrated. Friend of mine did a swap from shorties to long tubes and gained nearly nothing on dyno and track for the time, effort, and not as nice of fit. If I remember right it was something like 5rwhp and needed a step up in jetting. I think I've done a hell of a lot with my old shorties too: 9.55@ 140 with the Procharger at 15psi, and headed for faster with the turbo. Even all motor it dynoed 405rwhp and ran mid 11's.