Is that a single stage on the underside?.......what sheen did you go with?
Did you hit it with 600....or just a scuff?
It looks great.
Done a couple of 6.4 in 67-76 A bodies.....you will need to remove the small factory oil cooler and use a remote cooler. The factory intake on the 6.4 has a sensor (?) on the rear of the intake that bumps agains the wiper motor. Some have swapped to the 6.1 intake