They must be the 1.7 ratio variety. you'll have to check the fulcrums to see if the geometry is correct.
There was a site..something like Chiseled performance, guy in Miami Fla, that did this to his TTA.
He used Scorpion roller rockers that were 1.7's, but could not tell me part numbers or from what application.
The guide plates were Iskendarian, the studs were 6 from ARP 7/16 for BBC with girdle(long) and 6 short 7/16 from ARP BBC standard. The long ones would protrude the valve covers so a nut could be used to hold down the VC.
Problem is milling down the pedestals, how much..dunno.. i'll be honest. And then getting them drilled from 3/8 to accommondate a 7/16 stud. So a pair of those 7515 heads would be the e-ticket and have your machine shop do the milling.
Man do I wish it was a simple bolt in and go. Hence why the experiment with the 3800 series roller fulcrum rockers is being experimented with. Problem with those rockers is the hole for the stud is 5/16 and out heads have a 3/8 bolt.. so getting those rockers and drilling the holes for 3/8 could work.
Rocker Idea
See what i'm talking bout Willis
Table is served..just need someone to move further.
And look a 1.9 ratio is available.. for the willing..