buick 300

Hi all, Any body know how to properly adjust the relationship between the switch pitch torque convertor switch on the intake manifold, and the throttle dash pot on the carb. The problem I am having is this; If I get the correct length on the trans. switch then I am unable to get full throttle...

Does anyone have a 1965 Buick 300 (Cast Iron) 4 Barrel Intake Manifold they would sell???? Email is pbolebruch@yahoo.com.