Guys what would you recommend on a Novarossi P5XLT plug? the place that I raced is tropical weather which is 80-90's & hopefully can make it to the Philippines Big Event next year anyway ... this is gnna be my first time to try the Novarossi Motor which I heard a lot of good things ,I got the motor from the other site which is 3/4 gal. and last thing about the shim? too which I have no idea how many shim do I need ,i will be using the 20% for now ..until the 30% fuel gets here ,please any input /suggestion , thank you..