I have a stock 99 OHV 4.0 with 136,000 miles and I want to cam it. First, is this a good idea or very very bad? Second, is the power difference worth it and if not what is a better alternative? If It is fine to cam it and the power difference is good for the amount of work, how high of a lift can I do before having to do lifters, valves, ect..?

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1999 Ford Ranger, 5 Speed Manual Overdrive

I'm guessing the engine needs to be pulled to cam it so you might as well do a mild performance build while it's out

sent from my iPhone 5....PSH!!! I don't have money for a iPhone 5

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95 Ranger XLT 4x2 2.3 I4 5 speed 206,000 *dead*
96 Ranger XLT 4x4 4.0 V6 5 speed 173,000 *alive*
D35 front, 8.8 rear, 3.73 gears, limited slip rear diff