- Joined
- Aug 6, 2007
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I had a blower on my 4 cylinder Ranger for more than 10 years before buying the 4 liter Sport Trac that I own right now. About 18 months ago, I put on a set of Doug Thorley headers, thinking that they'd help somewhat with the engine's rather tepid performance.
Now I've got a burnt valve in my #5 cylinder, and the mechanic is blaming my headers. Personally, I don't see how a shorty header on a fuel injected engine is going to cause a lean condition. He thinks I should dump the headers and go back to stock exhaust manifolds.
Does anyone here have any experience in this kind of situation?
Now I've got a burnt valve in my #5 cylinder, and the mechanic is blaming my headers. Personally, I don't see how a shorty header on a fuel injected engine is going to cause a lean condition. He thinks I should dump the headers and go back to stock exhaust manifolds.
Does anyone here have any experience in this kind of situation?