Well here's my 2 cents. Years ago I had a '72 vintage stock low-squeeze 440 with stock 906 heads added, an old Offenhauser Dual-Port intake (read up on that part, they worked!), 1 3/4" headers, and a 750 Holley vacuum secondary carb with an antique and very mild Sig Erson Hi-Flow 1 cam. Used a Mopar electronic distributor, Accel Super Coil, and an MSD 6C (same as today's MSD 6). Plugs gapped at .045", 18 degrees initial timing, with an additional 16 mechanical, no vacuum advance at all. It had incredible throttle response for a low compression motor. Not a giant killer by any means, but still lots of fun. Would be handy to know your static compression ratio. IF you have 9:1 compression or less, and IF your "mild" cam has less than 235 degrees duration @ .050" using a combo like this will work. Beanhead is right about TDC, ancient history to try a combo of that nature these days with the gas we buy. Never forget the fuel composition is vastly different now than what that motor used in its day. Also, the point distributor can't possibly keep pace with today's multi-spark ignitions. A good MSD-type ignition with a hot coil is the ticket. Anything to fire the mixture as completely as possible makes power. Making high dynamic (running) compression is the key to making power. If that can't be done using a high static compression ratio, then we must rely on any method to "ram" the mixture in to the combustion chamber to attain it. That's why we use dual-plane intakes and small primary tube headers. If your run, say, 9:1 squeeze, then any cam with more than around 240 degrees @ .050 duration will bleed off so much cylinder pressure at lower rpm that it can't make power. My though is if you need to run less than 9.8:1 compression do all you can to build big pressure at low rpm.
