2.5 Mercury heads

[wired247]

2.5 Mercury heads. Orignally of a 200 Pro Max. 18488-C3 . Run for the last year on a 2.0 Fat block 150 on premium at 23 degrees timing and ran great with no signs of detonatation. . Cut to 28 CC . In excellent condition. $150 shipped Conus.
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