what is a good brand of dual valve springs to buy for a jdm h? i plan on just building the head as much as i can and leaving a stock bottom end. what are the most mods i can do? i already paln on port and polishing everythin, but what about cam options?
basically most is the most i can do to the head before needing to build the bottom end?
basically most is the most i can do to the head before needing to build the bottom end?
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