Del,
However, any 70 or maybe 71? car that still had factory points ALSO had a "smog curve" I replaced my 69 distributor and it seems a bit sluggish. Same timing. How do I confirm and replace the "curve"?
You probably got a generic distributor with "who knows" what curve. The best "present" answer is either buy a performance aftermarket distributor, or have the one you have re-curved (requires welding or brazing) or else go to the FBO site and look for one of their "limiter plate" kits..........