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Tru2Chevy · 10-22-2007, 06:40 PM

Well, those 1 5/8" primaries are probably holding you back some. I don't know how low your car sits, but some 1 3/4 or 1 7/8 long tubes would probably help quite a bit. Since you are running the cutout, the 3" catback shouldn't be affecting you much.

You could also try running first gear out another few hundred RPM. Since you have a 700R4, the 1-2 shift is about a 45% drop in RPM.....so every few hundred RPM more that you can get before the shift should help it to carry better.

- Justin

10-22-2007, 06:40 PM	#21
Tru2Chevy Co-Founder / Site Admin Join Date: Jul 2004 Location: Ewing, NJ Posts: 22,476 iTrader: (8) Social Networks:	Well, those 1 5/8" primaries are probably holding you back some. I don't know how low your car sits, but some 1 3/4 or 1 7/8 long tubes would probably help quite a bit. Since you are running the cutout, the 3" catback shouldn't be affecting you much. You could also try running first gear out another few hundred RPM. Since you have a 700R4, the 1-2 shift is about a 45% drop in RPM.....so every few hundred RPM more that you can get before the shift should help it to carry better. - Justin __________________ 1999 Camry - Beigemobile DD 2002 Suburban - Wife's DD 2004 Grand Cherokee - Not running / Project / Selling?