Superjet 650 Top End

Hello , Currently have a 650 93 superjet and have this ported cylinder I want to install.
exhaust ports widened and port matched, bored to 77.50 with pistons
I also have a west coast head currently on my stock cylinder ,I think it's 28cc or 33cc domes, should I keep westcoast head ?
or get a milled head ?
Also , I have a R@D pipe and exhaust manifold, Will I have to check that also ? can I use stock Gasket?
Should I , Up the Jetting on the carb from 115p (120M to 125 M) 95 gram spring , stock needle and seat ??
 
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