1974 Duster
Pulled the intake and valve covers last night- Not sludged up but lots of flakey oil deposts.
I'm going to vacuum everything out tonight and start changing the valve guide seals. Intake is an old Edelbrock Performer and I have either a Carter 500 cfm or 750 cfm carb to install.
Or a Thermoquad off my GTX I have not used in a few years ;-)