Looks like Dale Quarterly won it. The bikes were pretty slow compared to the jr cup bikes.
I raced with Dale back in the late 70's with WERA at IRP. He was pretty fun to hang out at the hotel bar with as he was a Pro racer and it was only my first or second year. He was nice to me and I didn't know anything at the time. At IRP the road course used the drag strip as the front straight with a hairpin leading onto it, so you had to accelerate hard. Quarterly was racing a Kaw 1000 and spun the alternator off the end of the crank and out through the sidecover and it went rolling down the straight and bounced off the guardrail.