Hello;
In my personal experience, a good setup is;
5 Oz tank uniflow vented (adjusting lately to the consumption, probably no more than 4,5 Oz)
11x6 to 12x5 prop, depending on your taste, model weight & drag...
fuel; 22% castor 5% nitro
25% oil (half sinthetic, half castor) 5% nitro.
In my opinion, power delivery will be OK for Super Chief, Magnum, 660 Stiletto, Maikis Indigo.
Best with average weight in the 55 ounces range.
Regards from Spain.