[ERA Chas]

Keith,
Would you care to comment on the use of engine coatings such as dry film lubricants on your build-ups? I posted this question on "Shop Talk" a while back and got zero response from the pros. I suspect your pro stock customers use them extensively, but I 'd like to hear your opinion for street/ track Cobra applications.
I'm talking about coatings on pistons, valve faces and stems, manifold bottoms, port runners, head port walls, combustion chambers and any where else various types of coatings can be applied and which might be most effective cost-wise.
Don't wish to tie-up your time, but thanks for any thoughts on the matter.