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Engine Swap Everything about swapping an engine into your Third Gen.....be it V6, V8, LTX/LSX, crate engine, etc. Pictures, questions, answers, and work logs.

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Old 08-28-2009, 09:41 PM   #1
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2.8 to 305 tach help!

So I bought a 1989 RS originally a 2.8/5 speed replaced with 305 v8 from a 1984. I've got a coil-in-cap distributor wired up seemingly correctly under the hood. Only thing is, my tach is constantly slammed out at max. It's got a full IROC interior including the instrument cluster.. anyone encountered this before? edit: Oh yeah it has a 4bbl Edelbrock, and stock intake. The distributor is non-cc btw
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Last edited by awfiedler84; 08-28-2009 at 09:49 PM. Reason: added some info
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Old 08-29-2009, 01:43 AM   #2
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Project: 85 2.8 bird's Avatar
 
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Car: 06 CTS / 78 Formy / 87 T/A
Engine: 3.6 / 6.6 / 5.0
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Re: 2.8 to 305 tach help!

tach filter?
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Old 08-29-2009, 02:33 AM   #3
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Re: 2.8 to 305 tach help!

What is that?
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