Did you buy the heads as “ootb” heads, or “prepped”(reworked) heads from a cylinder head shop?

I’ve sold tons of those heads....... never saw any come from Edelbrock with 10deg retainers and locks.

Edit...... I guess I missed the post where you said you bought the heads from a builder.

The Comp std height 10deg locks for 11/32 valves are 611-16.