Using the Subaru shop manual, I always count the teeth and spaces on the belt to be sure the marks are correct. Thanks anyway for the tip.
This is a 1,900 lb road race car. 25psi boost, 550 WHP, 476 ft-lbs torque. For the AVCS, we leave the oil pressure connected but no electrical connections. I checked Brian Crower and Tomei's webpages but, did not see any parts to replace the AVCS sprockets. I will call them. Thanks for the tip.