Well, I am running a little more HP on my 67 Camaro, but I bought a new Edelbrock 740 (I think, can't remember now), looks like a take off of the traditional Holley DP, vacuum secondary and I am completely impressed. Car runs 12s and will get me 17 mpg when I take it easy...very impressive for sitting atop a stroker 388...and the choke works great! All I know is I am pleased. Again, I have a pretty hi-output motor. They do offer smaller CFM versions. 600 or 650 would probably be fine. Definately get an aluminum manifold if you go this route. Spacer plates are a pain from my experience and take up space. I have probably done things wrong, but I can never seem to get the gaskets to seal at the same time. Always seem to end up with a vacuum leak using a spacer.
