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Tru2Chevy · 03-24-2008, 07:55 PM

Can't help you with the 9th injector stuff, but the TPI 305 and 350 computers are often the same, just have a different chip in them to compensate for the differences.

The TB bypass mod shouldn't give you any noticeable difference. All it does is keep the warm antifreeze out of the throttle body, so it should keep intake temps down a very slight amount.

- Justin

03-24-2008, 07:55 PM	#2
Tru2Chevy Co-Founder / Site Admin Join Date: Jul 2004 Location: Ewing, NJ Posts: 22,476 iTrader: (8) Social Networks:	Can't help you with the 9th injector stuff, but the TPI 305 and 350 computers are often the same, just have a different chip in them to compensate for the differences. The TB bypass mod shouldn't give you any noticeable difference. All it does is keep the warm antifreeze out of the throttle body, so it should keep intake temps down a very slight amount. - Justin __________________ 1999 Camry - Beigemobile DD 2002 Suburban - Wife's DD 2004 Grand Cherokee - Not running / Project / Selling?