I am switching to a solid roller in my 408 LA block and am using the Morel lifter P/N 965. I know there is some grinding that needs to be done, but are there any mods that have to be done to the oiling system. The cam is .645 lift. Thanks for any help.

You'd be better off posting this under the race forum and putting a better subject description that just "Roller lifters". Try something like "SB Roller Conversion Questions" (or what ever will fit in the subject line).

If it were me I would use the Doug Herbert roller lifters. They are drop-in no grinding or oiling modifications required and cost less than $300.00.