thanks again, Pat

so aluminum may be better cause the ringing don't come through the valve train too much(?)... I'm just thinking about what is not going to break... yunno you break something and replace it with something stronger and find out what will break next

Sounds like swapping out rockers will be more than I should tackle for a race motor that needs to run hard soon... I was hoping it would be more straight forward but if I need to check/change push rod lengths I should leave it to the pros this time cuz I don't want to screw it up

I appreciate all the feedback...

-Chris