Do I need to clean the mounting surfaces before installing this gasket?

Yes. Wipe both the header flange and cylinder head surface clean with a shop towel to remove carbon buildup and old gasket material. A clean seat ensures the new gasket seals properly.

Should I apply any sealant or gasket dressing to this gasket before bolting it down?

Mounting method not specified — test-fit before committing to adhesive or additional sealant. Many header gaskets work dry, but verify your header manufacturer's recommendation to avoid over-torquing bolts on a wet gasket.

Will this gasket work if I'm reusing my factory header bolts?

Gasket compatibility with existing fasteners is not confirmed. Inspect your header bolts for wear or damage before reinstalling. Replace any that show stress cracks or threads that won't hold torque.