63mm throttle plate source?

[Paul Workman]

Considering tackling my TB - being the DIY type that I am. I've opened the top end 19%, as part of my porting, but have not opened the TB by the same amount. Anybody got a line on them, or done this yourself?

P.

[limey]

http://rvmorsemachine.com/index.html

Best there is, about $150.00 for the boring ad new plates.