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Old 06-20-2013, 07:45 AM
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I believe those 50cc heads are on a 21 degree valve angle (they've been angle milled 2 degrees), if that is the case it may be a headache to get the intake and exhaust to work right.

To be honest a simpler way to see a power gain would be changing to a better intake, milling the heads you have and maybe getting them ported, and getting a different cam.

The total cost will be the same but it'll be an easier approach with less headache.

Adding a supercharger or a shot of nitrous would also work- if you're willing to consider that.
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