I would install our needle/seat assembly and accl pump.
Make sure the power piston hanger arms are level and EXACTLY even. Our kit comes with a new retainer for the PP to keep it in place during assembly.
Most likely the hanger arms got bent during the rebuild and throwing the high speed running test out of calibration.
The biggest reason to use our kit is that it will have the correct size fuel inlet seat, which effects fuel level at any given float setting. For stock set-ups I would use the stock factory recommended float height, unless the fuel pump has been changed and fuel pressure is not the same as the OEM pump.
The idle tubes at a minimum should be cleaned, we remove them here, but they can be cleaned out without taking them out of the casting. It's just difficult to clean under them so it's always best to remove them and size them with a precision drill bit in a pin vise.
I would also install a removable set screw in the airhorn so you can access the APT system and lean out the carb for emission testing, and fine tune the part throttle A/F afterwards without taking the carb apart.......Cliff
