388dart has kindly offered to let me try his 650 dp speed demon. That along with some other pointers make me hopefull to get my problems resolved.
The impression I am getting from my current carb is that the primaries are working fine but when I stomp on it it works like it is only using the primaries.
As near as I can figure this is all part of the build process. You have to allow for getting them sorted out.
Jack