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Ford 4.9 (300) spark plug woes
WOW! Had this carbureted 86 F150 in for freshening up, Pretty solid truck with the 4.9 300 inline engine. I decided to do some spark plugs, looked like they had non foulers on the end, and plugs had been in for along time. wrestled one plug and nonfouler out. ... Login to read more. ![]()
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| Engine | 4.9 L |
| Trans | 4-speed Standard |
Vehicle Data
1986 Ford F-250 XL 4.9L
| Engine | 4.9 L |
| Trans | 4-speed Standard |

27 Replies Received
27 Replies Received