Speedmaster heads part 2. Plus intake work

If you look at the .600 lift number you can see it took a very slight dip then recover. Most don’t recover like that. Scoot across and look at the same .600 number with the intake on. It slowed the air a slight amount and cured that. You can’t give up 40cfm because of an intake.
And after you do your work on the intake it will still hold on better @lift.:thumbsup: