1974 Dart 440 tuning help

roccodart440 said

I wouldn't lock a street car down either, but run a MPP dizzy and see what the curve is. It might as well be locked. His car is never even under any significant driving load under 3500 RPM. If it's not detonating and it isn't pushing back on the starter, where's the issue?

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Yeah, those all in by 2500 deals may as well be locked out.

My issue is how much power it costs by locking out the timing. It’s HUGE. If for example I put a curve on a distributor that was locked out and gain 20/20 or 30/30 torque and power that tells me that’s how many horsepower the engine was unhappy.

I used to be a lock it out guy. Then I got an education and I almost won’t do it any more.