Hi steve,

Do you have a p-port running?
I may come up and measure the
pressure wave with a pressure sensor
and o-scope I'll bring.

Paul

Ops that was meant for Steve Beckham

BTW Power Sport puts the throttle plates inside
the housing right next to the port. Just like NSU
and Suzuki motorcycles. We put the slide throttle
close to the engine for the same reason. It improves
the p-port idle.

There is just about no other choice for measuring the intake
manifold pressure other than the oil injector holes.
Here is the position of the 13 b oil hole relative
to the p-port.

Paul Lamar