whatever you do, DO NOT deal with toysport. what a bunch of conniving idiots! they used to be decent...before they decided that ripping people off and bad technical (ha-ha) info was the way to do business! and they're on the other coast...good luck getting in-touch! they tend to be 'busy' and not able to talk or forget to call you...

 

is your current engine a 5SF-E? is it DOHC on the belt? or a single belt-driven cam with the second cam turned via gear?