Carburetor Question - Is this a good call?
IF there's no fuel at first movement (65Val's test), this is the pump lever he was talking about.
If its the pump cam that Holley installed, all that should be neccessary is adjusting the spring loaded bolt so there is zero play at idle.
If the pump cam has been changed, sometimes its neccessary to reshape the arm (bend) so it contacts the cam where it will do good (upper arrow). Also make sure the lever is not contacting the throttle spring next to it.
If fuel is still not appearing immediately, then check valve (umbrella valve) could be damaged.
I think I know why MO mentioned power valve. If you get a part throttle flat spot at higher rpms, that would be a possibility for sure.
IF there's no fuel at first movement (65Val's test), this is the pump lever he was talking about.
If its the pump cam that Holley installed, all that should be neccessary is adjusting the spring loaded bolt so there is zero play at idle.
If the pump cam has been changed, sometimes its neccessary to reshape the arm (bend) so it contacts the cam where it will do good (upper arrow). Also make sure the lever is not contacting the throttle spring next to it.
If fuel is still not appearing immediately, then check valve (umbrella valve) could be damaged.
I think I know why MO mentioned power valve. If you get a part throttle flat spot at higher rpms, that would be a possibility for sure.
