looking for a usable pair of 99AS 'denver' heads

[Lowsquire]

Hi there,
as the title says, wanting to find some high compression 99AS 'Denver' heads, left and right. (they will have 6049 and 6050 on them.) This is for my '39 Merc motor, which is currently wearing 81T heads..and suffering pretty low compression for it!
I understand they are pretty hard to find in good condition, and will pay a good price for a nice set, preferably not heavily milled! prepared to pay shipping to texas too, of course.

Please reply to
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Thanks. Ben Thomas