Hank,
You are correct in all you say, the LSA can have a great effect on how you make the power that you do. Type of driving and gear splits have an effect on LSA choice too, a tight gear split and many gears, a tighter LSA is useful. Tight LSA cams "feel" quicker because of the rapid ramp of the torque curve like you said. They also have the torque peak and HP peak closer together too. For boosted applications you want a wide LSA. Circle track cars like a tight LSA. Not one "wide" or "Narrow" fit all driving. We all have our preferences, I happen to like 108-110 LSA my self. But Martin for your car with a wide LSA would probable be best
