Thanks John, Tom Dixon recommended synthetic fuel, little or no Nitro,depending on the needs of the plane. Dave Royer uses all synthetic fuel with no Nitro in his Magnum with the Stalker .60 and has good results. He had a time fiddling with compression, props and fuel before it finally settled down, but now its real workhorse. So I guess when I get that far, I'll try one and maybe all the suggestions posted here and from Tom and Dave and see what it takes to make this beast run.
I will check with Eric Rule about tanks also. I'm guessing a 2 1/2" wide tank, 1 1/4" deep, about 6 inches long should be enough for starters, right?