Tell me again about adjustable? stud rockers for EQ mag heads?

Thanks guys for the replies. Now you say custom PR are you using OEM type cam and rollers? So changing the studs / rockers mandates custom PR length?

Yes. I had to get custom length pushrods for my 5.0 Ford. I was lucky though, because they were an off the shelf length. Pushrods are cheap though, even in custom length.