Spool good for lower ET?

I would think so also,BUTT if you have a slant six here you get alot less responses or help,doesnt matter that I am a Mopar at heart person,racer,restorer.I just happen to like going fast with a slant.National record is what I am building for,hard to pry info out here that I can apply to my slant sickness.I only have 5 cars faster than me on motor.Looking for answers that apply in general.Guzzi Mark