Grudge match HELP!

Here's the story......My boss and I have been talking junk since last summer on who would win heads up 1/8 mile. We both had motors built at the same time, for our street cars. He had a late model low compression 360 and I a '70 340. Both used the same cam, both balanced and blueprinted. But he did install a set of heads that had been worked over for a stocker motor that he ran for a while, but changed the valve springs. I just had a stock set of "X" heads that had valve job and new springs. He is running Hooker headers and i am running Spitfires. His motor is in a '73 Duster with 904, 8 1/4 rear 3:23 posi. Mine is in my '66 Valiant with 904, 8 3/4 3:91 posi. Both running Mopar electronic ignition.
Because of schedules and such we have never got to the track at the same time. The best time I ran was 9:10 in 90 degree heat. I find out in early Oct. he ran 8:85. Pissed me off! He doesn't know, that I know, what he knows. He is running a dot drag radial. But my car hooked well on my street tire. Don't think I am losing to much there. But I need to find out his 60 ft time.
So in lies my dilemma. Should I put MSD ignition and maybe the MSD distributor in this thing or just get the dot drag radial? Maybe put some 110 octane in the thing.

Thanks for any suggestions,
cb66