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carb to tpi conversion 77 chevy p/u

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Old 05-17-2011 | 08:21 PM
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john36mc's Avatar
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carb to tpi conversion 77 chevy p/u

Hi guys
I am new to the list . This is my first TPI. I removed it last week from a 1987 firebird 305 and I am installing it on a 1977 chevy p/u 4x4.with a 305 reman. i just got the intake on today and half dressed the wiring harness.
My question i have right now is I want to run a turbo 350 trans. I have two wires going to the tranny one i think is for speedo and one is for the tc lock up.do i have to use them I wont have a lock up I was thinking i might need a electronic speedo converter for the computer. I do have some electric questions I hope some will chime in .you guys have a great forum here.
here is a pic of the truck i am building for my daughter.
Attached Thumbnails carb to tpi conversion  77 chevy p/u-77-chevy-.jpg   carb to tpi conversion  77 chevy p/u-112_1768.jpg  
Old 05-20-2011 | 01:13 PM
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AaronIROCZ's Avatar
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From: Tomball Texas
Re: carb to tpi conversion 77 chevy p/u

The wires have nothing to do with the speedo, they are for the lockup tcc. The speedo is cable controlled from the rear on the tail shaft. Since I believe the truck is also cable controlled you would need a speedo buffer from a camaro as they are cable driven also, although it would take some fab work to get it to work. You also might look at Dakota digital for a converter box. Since this is not thirdgen camaro/firebird vehicle I have to lock this.
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