I've got a question for all you 2 stroke engine gurus

If I wanted to take a brand new ABC .28 2 stroke and get the maximum performance out of it ie as high revs as possible at full throttle on an APC 9x4 prop what do I need to do to it?

I plan to run it in on an 8x4 on the same fuel I intend to run the engine (ProSynth 10%) on but should I be messing about with timing on the liner and/or fiddling with the exhaust?

TIA, Andy