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1968 Ford F250 with 4.9 ltr six


Staff member
I found an extensive discussion regarding this subject over to Essentially it will give just a little more lift due to the ration, but is recommended on a sltock cam only and best if you already have stud mount rockers which I do belive you would. It depends what the gain you are looking for is. It helps a little, but won't make a huge difference.