Bo,

I really appreciate the attention to detail and the sharing of your build with us. I think you and I are on the same page when it comes to improving our bikes - - one step at a time and hope for best results. I recently read two books about Burt Munro (should be required reading for those of us building special bikes) and I found out that if you compared his speed year after year, from about 1950 when he decided to dedicate the rest of his life to the "Gods of Speed" to 1972, you find that his average annual speed increase was only something like 5 mph per year. There appears to be no magic pill to make it happen sooner.

If I can follow in his footsteps, I should be able to hit 200 mph by the time I'm 78!

As for horsepower to speed relationship, I used my existing results to program a spreadsheet based upon the rule of cubes - - that with a known bike (coefficient of friction), you will need to cube the hp requirement for a linear increase in speed. That is to double your speed for example, you will need 8 times as much hp. It has proved very accurate so far.

I can probably email my spreadsheet (MS Excel) if you like.

As for solving the blow thru issue with carbs, If you figure it out, please let me know. Not only do you have to deal with equalizing pressure in the bowl and at the vents, you have to increase fuel pressure equal to your boost. And float valves seem to be very sensitive.

Tom