There is a brand new HEI conversion coming out soon. The company is also brand new and based right here in Daytona. My friend with all the Pontiacs has been their "tester" for two years now. They installed their prototypes on his 68 ALL ORIGINAL 22k mile GTO. To date, they have developed and redeveloped this thing countless times with THOUSANDS of dollars, computer techs & engineers dyno test upon dyno tests. Bottom line, and I probably shouldn't even be saying this but here is goes. Thus far, absolutely no advantage and nothing but problem after problem. These things will last for days, weeks maybe a month. Then, bang, burn out, quit, die etc. They have been to the drawing board (computer) countless times and have had to delay their launch for almost two years now. They were suppose to launch at the PRI show here in Orlando last Winter, didn't happen. Bottom line, from what I have seen myself as well as my friends experience, these things are all pretty much a waste of money.
In my 68 Bird I tried the first Pertronix conv. Lasted 6 months and several issues. Then tried the Pertronix Ignitor II with their coil. Lasted a year and went bad. Then tried an experimental version for them that lasted 14 months and left me on the side of the road 125 miles from home (yeah we used to drive our bird, 405 rear wheel HP and all each and every day). Then we went with the Malory conversion, sent it back as I am all about a stock look and wasn't going to have one ugly [censored] box screwed to my firewall. However, we did try it while we had it and there were inconsistent voltage issues.
So all in all, it seems we always end up right back to square one, stock dist & points. Oh yeah, my friends bone stock 68 GTO with 22k ORIG miles still to this day runs in the low 12's and once in awhile gets her into the high 11's with a tire change all the while running points. It blows the guys at the track away every time we go! The kids stand there and shake their heads in disbelief. It's a riot!