Difference between solid roller and flat tappet

pittsburghracer said
Hmmmm wonder who was announcing. We are friends with both announcers at Norwalk. My Kid gets around and will drive anything so I’m not sure who that would be. Have helmet will travel. Lol. Matt headed to Quaker City this weekend.

not sure....
The tape is on motor mania... pretty sure it was thursday. Whoever the announcer was, i got the impression he raced in Ohio a good bit