Worked at a restoration shop and several customers cars came in regularly for a through cleaning and detailing prior to show season, to include a manifold touch-up (we used the Eastwood stuff) It is OK but in a moist environment the manifold will still rust and you'll be redoing it every few years.

I think ceramic coated manifolds would have solved part of the problem. The one I pictured above still looks good after 5 years or so of being mostly inside but in the rain (no hood) at shows too.

Grigg


•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-