Intake and exhaust manifold

Yes, you can clean it with a wire brush.
The intake mani doesn't get the same heat as the exhaust mani does.
You just remove the old paint on your intake, clean it and spray it with engine enamel.
Read the can and it will tell you that the paint needs to sort of "cure" with heat.
Just don't go spilling fuel over it when it's fresh.
Be careful when remounting the manifolds.
Do a search here or look at the /6 site for complete instructions on mounting the manifolds correctly.
Good luck
:happy2: