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Help me decide 550xp or 545

Keith Gandy

Maxima K2 40:1 87 Pump Gas
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Did you port that thing already, and if so what'd you do.
Deleted the gasket but the gasket is pretty thick on these at .026. That put me @ .011 so I cut the top until I was @ .020. I put the transfers and exhaust back to factory height and cleaned the transfer factory castings up and added alil strato duration, (top edge of the bottom piston window), back to account for the drop and then raising the transfers back up which changed the fuel to strato ratio. Ill have to look at my notes to get the #s Numa
 
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