Well, just to clarify, I feel comfortable with Thermoquads, Holleys, and edelbrock/carter as well. As I stated in post 2, I've not run a Demon. Reviews are either "Great" or "junk". No in between. For me personally, I'd go with QF only because they are like a Holley, use Holley based parts (super common and cheap), and have great reviews, but cheaper than a Holley. **And some impressive numbers layed down by them brawlers.