Has anyone tried the Odessa Cylinder Heads for 5.2/5.9 Magnum ?

What’s your tire size/gear ratio and is a replacement performance stall converter in the cards?
8 3/4 , 3.91 sure grip 742 case.
Tires 25.1 diameter
B and M 3500 holes shot converter
73, 440, Thermoquad, 850 CFM
Present cam, Old Crane Fireball grind,
Int 498/274 exh 512/286 113 LSA (advertised)
Duration extra on exh for maximizing 150 shot of nitrous