Who's making good thick-walled rocker arm shafts for BBs that use plain-bearing (not roller bearing fulcrum) rocker arms? These would be used w/ 600# open spring loads and need to be pretty stout to hold up during street & strip usage.

I know Harland Sharp shafts are beefy like the old RAS shafts. However, their oiling holes are drilled differently, so I don't know if that would cause problems w/ oiling at the bottom of the rockers, or if adding grooves would do the trick.

Speaking of RAS... anyone dealt with them now that they're back as Rocker Arms Unlimited? I'm almost scared to call them for price & availability of their shafts, considering how crappy their customer service and order filling time got before I guess the company changed owners or... ? They USED to have some pretty nice stuff, though.

Thanks - Brad