[aarcuda]

theres aboslutely no calibration needed. both the cam and the crank sproket are keyed so when you take the cover off and removed the bolt from the cam sproket, just put the new sproketts on the cam and crank making sure you dont TURN anything and they will be lined up just like before.

also, another thing you can do to verify nothing moved is that after you remove the cover, line up the dots on the old gears before you take it off (use the crank bolt to turn the motor over and then remove the top cam gear (loosen the bolt up first before you line up the dots up so that when you go to take it off it doesnt turn the motor over). this way if the crank or cam does move (which it should if you dont turn either one) you can just line up the dots again. but if you loosen the bolt first then line it up, the gears should just slide off and nothing should turn.

hell, I'd do the job for you for half that much. live anywhere near little rock?