69 Thunderbird / Fuel Injection

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Lawrence1957
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Joined: Sun Jul 08, 2018 11:09 pm

69 Thunderbird / Fuel Injection

Post by Lawrence1957 » Mon Jul 09, 2018 11:57 am

My 69 has a 429 Thunderjet engine. It runs very well at a normal speed. My issue is it seems sluggish when going from a dead stop. Not sure if its a timing issue or carburation. Thinking of putting on electronic fuel injection. Has anyone done this? Any issues?

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Alan H. Tast
Posts: 2775
Joined: Wed Aug 20, 2003 10:52 pm
Location: Omaha, NE

Re: 69 Thunderbird / Fuel Injection

Post by Alan H. Tast » Mon Jul 09, 2018 1:42 pm

You'll want to ask this question in the Modified section for 67-71s for the FI issue. Moderator may move message to there. If you're still running the original Autolite 4300 they have their quirks, and I believe sluggish acceleration may be a symptom of the need for at least a good cleaning or overhaul. Start with the simple things before going overboard by throwing money into parts that may put you "upside down" in your spending on the car.
Alan H. Tast, AIA
Technical Director/Past President,
Vintage Thunderbird Club Int'l.
Author, "Thunderbird 1955-1966" & "Thunderbird 50 Years"
1963 Hardtop & 1963 Sports Roadster

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