what jetting should I be?

[chetgoff]

I have t-5's, 35 PWK"S ,64.5Bore Ported cylinders pretty big ports. (need to do a degree wheel to measure). the timing I think is stock. head is milled. and compression is at 150psi per cylinder. the bike smokes a little white when running not sure if this is norm. plugs look a little wet and dark when pulled but the gas is avgas wich he mixxed a bottle of oil that says for 5 gallons he mixed it with 4 gallons not sure what ration that is. is this a good ratio or should I go to five gallons. Just trying to get a fill for this new bike and this is my first 2 stroke. I read up on all the jetting help on this site also.