Hi guys and thanks for the replies!

The main reason I want an aerosol is becasue I was going to be a bit lazy.

I was intending to port match the inlet and exhaust manifolds to the head as they have smaller ports then the ports on the head.

I Have the head stripped so I was going to use a plastic pipe extension

(the ones you get with wd40

/ carb cleaner) ram it down the port

(on the valve side) and blast it at the edges of the inlet

/exhaust manifold that protrude into the ports on the head.

(the head/manifolds would be bolted together at this point and the runners on the inlet manifold would be blocked up

I was thinking that the dye would effectivley give me a nice outline of where the inlet

/ exhaust manifold if smaller than the head ports and I could then subsequently grind the rest away so the manifolds match the head.

Then just clean it all up with thinners when done?

Does that sound daft?

RS is a good bet and I didnt think of that, however do they sell to the public?

Regards

James