Hey Steve...you might find this approach a little different or backward but my Dad taught me to heat the engine surface with a simple propane torch to get quick and more durable adherence to the metal. Obviously this shortens the curing process. The first time I did this would be back in the early 80's. I did a 318 in a 273 red (it was actual high temp engine paint). I sold the engine to a high school friend of mine for a 4 door mopar of some sort. Joe was not at all mechanically inclined so every so often he would come by to have me look at his car. That engine looked good for years and it was driven daily. As for the non yellowing clear...you have to pay up for quality paint. If I do another aluminum intake I might try the Darter6 method! That intake sure looks great. If I don't I will paint the aluminum the same color as the engine. Does the aluminum look good for a while? Hell yes but I am over that. The one you have on the stand looks nice Steve.