I am wanting to do some major upgrading to my 1992 honda vfr750f. I would like to know where i can find forged racing internals for the enigine. I need to lower the compression ratio as low as possible to make plenty of boost. Where can i find parts for doing this? Also, i would like to put a bigger rear sprocket on. What is a good brand? Any good advice would be nice. After all of this i am going to upgrade the suspension.