to get to the 271 flow on the intakes did Dwayne remove the pushrod hump and move over the intake valve? i would rather not do this. I'm assuming he milled down the big valve guide in the bowl and then reshaped it. So the bi ply tires hook better than street radials? did you use any thermal barrier coatings? i'm thinking of using it on the bottom of the intake and carb flange area? As you can see i have more questions than answers.