305 tpi swap to 350 tpi
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
Joined: Dec 2004
Posts: 16,901
Likes: 1,014
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.
You will also need to run atleast 22#hr injectors . Stock tpi 305 uses 19#hr injectors.
Junior Member
Joined: Jun 2017
Posts: 11
Likes: 5
From: Chicago burbs
Car: 1991 GTA
Engine: 355
Transmission: 4L60
Axle/Gears: 3:73
Re: 305 tpi swap to 350 tpi
Thread
Thread Starter
Forum
Replies
Last Post








