Send me your motor build spec-heads/cam/size/compression. I will tell you what tricks that will wake it up. You can make big power out of a SBF if you know what you are doing, for cheap.
I was planning on the controversial long rod 351 windsor. I have all the pieces and will probably put that in to motion once I have a running car. Even if it proves to be a load of bull I intend to have the motor built up in the near future.