I have HP Exhaust Manifolds and I'm trying to switch to stock 1970 Valve Covers. I used Chrysler Race Hemi Orange to paint the valve covers. I did not use primer. Clearance on the right side from HP exhaust manifold 2806900 to the valve cover is tight. After 30 miles of driving, I had burnt orange. I have already tried Duplicolor Hemi Orange. It flakes badly, in addition to being runny. Does VHT SP120 stay orange long term in this high heat proximity to an HP Exhaust Manifold? Is there...
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