Engine Paint for late model Slant 6?

the first last and only time I used POR 15s engine paint I was very dissatisfied. Very poor coverage, almost transparent, I could see thru it as easy as that blue plastic "paper" that you would use to wrap an Easter basket..... and I've used many POR 15 products over the years and usually am the 1st to recommend them.... but not in this case. Id be inclined to try the KBS version "once" for comparison. Ive had equal results with their "equivalent" other products to POR 15 but this is one case I would hope that KBS would be better

and before the Duplicolor mismatch issue, the last couple years of Duplicolor before that was "peel city" within a month of painting and dropping the engine in especially low on the block and on the oil pans. Another product that "ain't what it used to be"..... Id be looking at VHT these days if I had to have a rattle can.