Comp cams nylon thrust button is easy to carve to the right size and just takes a few minutes.

The current one has been in my engine for over 6 years.

I used arp hardware and didn't have any issues with hitting the cover. shruggy

'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.