Just want to verify before ordering, i have a sidedraft weber on my m10 currently and have the mechanical advance dizzy, and i know i need a 2002 cam with the cam gears going in different directions. so is there anything extra i would have to do to put the 2002 cam in my m10b18, or is it just a direct swap over? and if i chose a regrind for a mostly stock engine would a 284 grind be to much, or just go for a stock 264 grind? thanks in advance sorry, for the newb questions.