rich compared to what? These trucks don't have catalytic converters so they're going to be full force (dont run 'em in the garage
)
you should go by what you can measure on the motor and not worry so much about the smell of richness unless she's smoking. Mne smoked like a freight train when i first got her running.
Whats your timing now? It should be 2UDC or 7UDC for manual or auto respectively