not sure?
01-28-2009, 07:54 PM
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not sure?
Well i was looking at some pics of a gsr head that is stock and it had the letter 'F' at the bottom of the exhaust valves on the big end...but i have a gsr head and was told it was stock but it dose not have the letter 'F' on the exhaust valves. so what is ya'lls opinion
