Mopar Proformance Distributor

? the question was does the M.P> distributors come with the fast advance curve built in, and the answers yes. I run closed chamber heads on my dart and set total as initial means nothing to me .38 degrees full on by 1200 rpm,running 13.5 to 1 compression with a msd distributor and control box, so the 915s on a bigblock require less total than a 906? thats news to me.no, the engines quite easy to start also.