Chaplin, I had a Speed Demon on my 59' Caddy. It was a great carb! It is true that it is better designed Holley. The only real problem I had with it was with the vacuum secondaries & that was due to the fact that the carb was too big for my application. I convinced a buddy to run a Road Demon on his 69' Camaro. He has been running it for about a year & a half now without a problem & he swears by it! The only reason I will be running a Holley on my Cobra is that I want it to look a little more period correct. I love both brands but would choose Demon or a modded Holley if all out performance was my goal.
