Drfn8r
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- Last seen
- Joined
- Dec 10, 2022
- Thunderbird Year
- 1969
hey everyone i have the 429 thunderjet in my car and was recently told I should be using high octane fuel along with octane booster due to this engine being used pre unleaded gas just wondering if thats what the rest of you do or if the regular stuff will work meaning not kill my engine or ping