Fullbore71, you sound like you have the same problem my father had when I built his engine. There are so many more choices out there then say 10 years ago. The rpm heads def can make the power. There is some work involved with that though. We have them on my fathers 499 and he made 789@6600 on 93 octane. I have not worked with the Trick Flows yet. They look good out of the box for sure. The victor heads are a better head for sure then the rpm's. If E-85 is scarce where you are at then just build a true pump gas engine. At that point be honest with yourself as to what your goals are. What ET you need to be at and what its duties will truly be. The problem with what you are doing is that everyone has an opinion on how you should build an engine. Not all are bad or wrong per say. For example I am building a 446 with Pro comp heads to go deep in the 9's in a 3000lb duster. I am only doing that because I was told it can not be done. So ok, as an engine builder I will prove them wrong. Also with a flat tappet cam just for spite lol. That engine will make about 760hp or so. To put that into perspective, it does not matter how you get there, if its in your budget and you are happy with it then rock on. To make the power you want to make, you will need good air flow and a cam that compliments your top half. But then your job is not done. Driveline and chassis plays a huge part in your equation. I guess what I am trying to say here is for what you are doing, you could almost pick a head by throwing a dart at a wall. What ever it hits you can make work. Just some will take more work than others. What parts and pieces do you already own? If you can tell us that then you might be able to get a better response on what direction you should try and go in.
Sorry for the long wind, but I hope it brings a little perspective and not confusion. If you would prefer, you could always call me, I would love to help and get some of your questions answered.
757-813-6600
Don