No pegleg. 12 bolt "posi", the rearend is from an el Camino 68-72.
I've considered aftermarket EFI but the entry fee is too steep, especially considering the WOT gains. If that EPS 750 didn't work like it does I'd be more inclined to make the shift. My investigations down this road always end up with me wanting to fab a LIM from sheetmetal and use a stock big V8 multiport setup off an LS truck or Camaro / Corvette from there up. Because TBI=why? But my induction ideas get bizarre. Using a tri-power setup as throttle bodies has been discussed... with Marlan Davis in HRM of all people. I wrote in about it many years ago and he took it a step further. I suggested using 3 2V TBs. He suggested going stealth multiport with injectors under the intake, using an aftermarket aluminum tri-power manifold. Pontiacs are all "air-gap" design and use a valley cover. Anyway yeah the current induction is satisfactory at under $500 worth of stuff, and it does fairly well with cold starts even with choke inop. Part throttle is beautiful to me. Much as I'd like to, for now EFI is out of my league.
I do need a new fuel pump, its the last fix I explored and to properly spec a pump for it (stock now but works), you start on the dyno. Pfft, dyno. Been just priming it when it sits for weeks in winter for years, and wanting an electric all that time. More research and planning. To me, the interior, trunk, and bay are all kinda sad while the engine runs happy.
Went down roller thought road too, and thats pricey on a Pontiac V8 by anyone's standards. You free up the valvetrain but never quite know the current wear condition of your distributor gear. It has to be a sacrificial piece (bronze or alloy) due to the hard cam gear. The lifter valleys, while mine is the better, early block... really need bedded braces to go roller. Lot of work, small gains. Factory Ponch grinds are actually awful hot, and work in all-iron engines well. Throw in some aluminum and things change. Main journals are 3.25" on 455s and pistons are heavy so its a low-RPM torquer.
I do have a pair of unported 4X heads (around 98 cc) I could put on (has #66 now, not much diff). They have 2.11 / 1.77 valves and screw-in studs, came off my deceased 400. And HS full roller rockers. Plan for next build was a 400 with XE268 cam but I had to bail, $. Plopping Edelbrocks on is the way to go... oh crap started talking engines.... gonna be late to put Firebird doors on. Have a good un Booba. Its refreshing to talk actual Pontiac but I get carried away. All those answers are no anyway, lol. Keep em coming though. I am drawn to left pedal as the mod for me.