What ET should my Duster be running?

Piston to Valve clearance might be an issue. Ive got Mopar Perf Purple 484 cam in the Duster and do want to put a bigger cam in it but understand I need to sort out compression first and the like. Get the block decked or new pistons with relief to push compression up. I'd love to get compression up around 11.0:1 if I can...