If WOT scares you, then don't WOT. Further, if WOT scares you on a SV650, why even consider moving up to a litre bike? It is certainly not going to be less scary!

As for how to get over your fear... it is just like anything else, open the throttle a little bit further each time until you get comfortable with where the limit is for bringing the front up off the ground. Just takes time and experience. How long have you been riding? Sounds like you just need more seat time to me.

Finally, why are you racing anything when you are not yet comfortable with throttle control!?! Don't be the next rider down thread!!!