I also insist on making a race car behave on the street. I found that the bushings that come with the MSD dist. still allowed to much advance. With alot of cam you'll need 24-26 deg. timing at idle for it to sit at a lite
without changing the radio station by itself. I made another bushing that only allows 10 deg. centrifigal. You'll have to have a start retard in the ignition for this or you'll fry the starter. Also a power valve would help it to not load up , your not making much vacumn so I'd say go with a 3.5 PV and take out 4-6 jet sizes in the primary. I'm running 85 pri./92 sec.Keep going down on the primary jet until you feel it surging at light cruise then back up 2. work the Power valve resriction channels carefully up till a/f at WOT is where ya want it. easy does it here a little is aloy.
Good Luck, Tony