How many passes on them now? What spring pressures? More spring pressure, higher RPM, less passes you get before it eats a roller and makes a mess.

I got away from the needle bearing 829s several years ago when I got over 700 lbs open spring pressure.

Comp makes the bushed 829s now and that is what I use.

3rd year and 500+ passes on this set.

67 Barracuda street/bracket car 11.27-119
68 Dart 502 BB 8.70s-152
414 cid SB Dragster 7.65-174