P@blo,
Thanks for the compliment P@blo
Summit has the Howard’s in stock. The issue is you will need to make sure the lifter doesn’t drop too low on the base circle and close off the feed to the oil band. It’s a super easy fix that will not affect the future changes if you swap to something else later. Just use a chamfer bit or larger drill bit to chamfer the hole just a touch. (Will need the block disassembled to clean afterwards)
Thanks again,
Stuart “Stan” Landreth
https://www.summitracing.com/parts/hrs-91174