Jeff,
For any engine, needing choke applied to run when up to temperature indicates that the mixture is too lean. Usually this is only true at low speed, not at full governed speed...does your 322 behave OK at high speed with the choke off?
If so, there is something wrong with the low speed jet/circuit in the carburetor. The illustration below shows how to clean the slow idle jet -- pay particular attention to the cautions abut *not using any wire or drill* to clear any blockage...
Chuck
For any engine, needing choke applied to run when up to temperature indicates that the mixture is too lean. Usually this is only true at low speed, not at full governed speed...does your 322 behave OK at high speed with the choke off?
If so, there is something wrong with the low speed jet/circuit in the carburetor. The illustration below shows how to clean the slow idle jet -- pay particular attention to the cautions abut *not using any wire or drill* to clear any blockage...

Chuck