I am performing throttle body sync and am having problems with the high speed adjustment. The idle speed sync seemed ok, but when I increase rpm the column on the right cylinder begins to rise . Both throttle cable adjustment screws are nearly bottomed out and I can't seem to make any adjustment that brings both columns equal. Do I need to go back to the air adjustment screws on the throttle bodies or am I missing something? I am doing this procedure using a home made manometer.