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305 tpi swap to 350 tpi

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Old Nov 1, 2019 | 02:59 PM
  #1  
ARthe1's Avatar
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305 tpi swap to 350 tpi

Ok I’ve been thinking about swapping out my 305 tpi for a 350 tpi , just wanna know if I can use the same ecu and harness , or what would I have to change or get because the tpi350 I’m thinking about buying doesn’t have ecu or harness so I’m just tryna get as much help/advice as I can get
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Old Nov 1, 2019 | 10:10 PM
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From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: 305 tpi swap to 350 tpi

You can use the same harness and ecm. You will want to get the memcal prom reprogrammed.
You will also need to run atleast 22#hr injectors . Stock tpi 305 uses 19#hr injectors.
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Old Nov 2, 2019 | 11:03 AM
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Car: 1991 GTA
Engine: 355
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Re: 305 tpi swap to 350 tpi

https://www.thirdgen.org/forums/tpi/...-swap-ecm.html

This covers it pretty well
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