Runs pretty good. It is almost daily driven on the street and highway. I am looking to do the hei conversion on my Mopar distributor so I can really get dialed in though.
I ran the MPP dizzy and went to a MSD pro billet. engine was much smoother after and the curve was easy to adjust. I'm sure that HEI will be similar. I'd back your total down a bit and see how it likes it. I'd do a pull at 34, 36 and 38 and compare the numbers if you are on a chassis dyno or ET's if at the strip.