Are these factory mod cylinders or what. They have MMR etched on the side of them. Tried to search and couldn't find anything about them. Just looking for some info if anyone has any.
The engine was done by my buddy manitoulin motorsports racing that engine is ported guaranteed if you can give me some details about the sled I can maybe help you out on what's done to it
My mod 700 spins at 9000, makes the most power at 8700 tho. But sees 9000 a lot. The dyno sheets run out to 9000 from the builder. Showing increments of 100 rpm with hp and torque values at each rpm change.
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