Clearcoat on engine

I have used spray can clear on intakes in the past and it did turn yellow after some run time. It also stained easily when gas gets dripped on it. This last round I used my spray gun to shoot base and clear but have not run it yet to see if there are any issues. The local shop that I purchase my paint from claims this paint will be much more durable and that there should be no yellowing from heat. Hope they are right!