anyone running methanol injection?

I am thinking of putting Metanol injection on my 340 to control knock. It has 13:1 pistons in it and it does NOT like the fuel I can buy here in Canada. I thought about pulling the engine apart and putting new pistons, but the motor runs very well and is balanced. I REALLY don't want to mess with such a good working motor so I am going to try the injection method. Any thoughts?