Glyptal & best way to apply it?

Have a 360 that's coming back from the machine shop today. Long story short is the build is: turbo, around 650-700 hp, street/strip but mostly street. I would like to apply glyptal to the block in the valley and even possibly the webbing area as well. I know the block has to be CLEAN-clean for it to stick well. I was thinking about spraying down the engine with brake cleaner then using a torch to burn off the remainder or the carb cleaner, dirt etc. and also to get the block warm for the glyptal to stick to. Any other input?