On my B-body, I reached up through the vent intakes and used a small trim roller with POR-15. I used the black, but after they sprayed my car (EW1- White), it looked grey. So I am sure enough overspray will get down there.


68 Road Runner (383/4speed, post car w/decor pkg) - Major Project
69 Road Runner w/472 Hemi & 4 speed.
70 Challenger R/T SE EF8 w/ V9J, U - A32 - Major Project
2023 Ford Mach 1