Re the pics 1080 put on,
The side view is not shown, you can actually on several fins see the sleeves throught the side of the cylinder, it no longer gets airflow through between the cylinders 1&2, like it did stock. So for the member here that wanted to run the .75 over 1080 pistons (whatever the actual cc is) .. good luck..
It is generally not a high hours deal. Still working on a way to build a couple billet ones with better finning..that would be runnable for everyday.
I found the 1080 bike that member 1080 has, I finally realized I was not able to buy it soon and turned him onto it.. he pounced
,, helped him prep it, I decked the block And o-tinged one of the sleeves.. I have ridden it,up and down the return road at the drags, it could use bigger carbs, it actually has a pretty mild cam, is undercarbed and still does mid 11,s.
It is not a matter of one person getting into the 10,s RC, sold motors that did all the time... and if you couldnt do it, they would.