Please elaborate if you would John. I am interested to hear what "wow" means.
Right now, I am using the PA 65 RE with no pipe and I really love it.
This is all Valspar basecoat. Will be cleared tomorrow with Valspar clear.
Brad, Your choice of power is a proven package. The WOW for the big Stalkers is for the excellent machine work, casting, and finally the way they run. These are pure 4-2-4 breaking engines. They seem to be designed to limit the top reving to about 8K or so. Norm Whittle just purchased the .76 from Kaz and had it at the field doing some running in recently. Ready starts, usually one backflip were the norms from the beginning. Kaz reports that he's very pleased with his.
I have a Stalker .81 that I plan to use soon. It will turn a 13 to 14 inch prop with a 6 inch pitch handily. I'm sure larger props could be used, but I haven't tried that yet. Even with a 12 inch 6 pitch prop, The engine wouldn't rev past 7800. I've been told by another who runs one, that it maxs out at about the same rpm with a 14x6. It seems to be a long stroking stump puller.
Time will tell, but I've been pleased with all my Stalkers so far.