This is why I made a comment regarding the duration figure. It's pretty big. Mine, at 250@ .050.....I did for two reasons. One, because it was necessary because the static compression came out too high, due to the head being milled too much.....that was actually an accident, but I still must utilize it.
Two, because simply, I want it to sound nasty. I want it to be FUN. It's a light car, 64 Valiant 2 door about 2650 pounds with 3.55 gears and 13" tires. Probably has an effective gear ratio closer to 3.91. It WILL have a 4.10 after I put the ford 9" in it. So, my situation is a little different. I don't mind a little loss on the bottom end, plus, I'm replacing a 170 with a 225. 55 more cubes, a lot more compression four barrel carburetor, bigger cam, bigger exhaust......it may NOT experience a loss of bottom end in comparison. It's gonna be FUN and that's all that matters to me!