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TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

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Old 07-10-2009, 01:22 PM   #1
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tps for 305 TBI?

Ive been looking for a tps for my 305 tbi firebird for 3 weeks now.I ordered 1 from autozone.com and 2 weeks later they canceled it because they can no longer get them.The dealer keeps telling me that the part has updated to a different part but it looks nothing like mine and theres no way its even going to bolt up to my throttle body.Anyone have any ideas?
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Old 07-10-2009, 03:06 PM   #2
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Re: tps for 305 TBI?

What year is you bird? I have seen 2 different TPS on LO3's, a flat one on the older ones and a round one on the later ones.
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Old 07-10-2009, 03:11 PM   #3
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Re: tps for 305 TBI?

It's an 89 formula 305 tbi.Think i found 1 on ebay tho.theres no pic so ill have to call and make sure its the right one.

Last edited by scooter454; 07-10-2009 at 03:17 PM.
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Old 07-10-2009, 03:26 PM   #4
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Re: tps for 305 TBI?

89 probably has the flat one. Looks like discontinnued, only options, check in the classifieds, jy, or finde a 91-92 TB with the round connector one. Turbocity sells a oval to round adapter.

Best is also to replace the aluminium screws that were used with the older flat/oval connector, with some normal screws. The aluminium ones are wery fragile.
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lo3, LT1 cam, 46mm bore performer tbi intake manifold, turbocity's 46mm TB, cold air intake, RBob's EBL flash, ACD#EP241 TPI fuel pump, turbocity's VRFPR 16-23psi, 3.5"aluminium driveshaft, Eaton LSD, GM 3.23, mac headers #TF8692, hoocker #16823 cat back, catco 3" cat, 3 wire heated oxigen sensor, Bilsteins, ebmiller88's 1LE front brakes.
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Last edited by thomas1976; 07-10-2009 at 03:33 PM.
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Old 07-10-2009, 11:44 PM   #5
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Re: tps for 305 TBI?

you can get the flat style still, I almost bought one from oriely auto parts, but they are more expensive I think somewhere around $70. I ended up using a round connector TB instead, and the TPS was much cheaper.
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Old 07-11-2009, 10:50 AM   #6
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Re: tps for 305 TBI?

Post a pic of what you need. I have a bunch of used ones and some new as well.
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1988, 305, 89, 92, air, aluminum, bolts, bore, camaro, cold, firebird, gm, intake, screws, tbi, tps
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