Geof, I've got a Boss 260 going in.
I've had a little fiddle with it, match ported the inlet manifold, put phenolic spacers under the inlet manifold, new chain tensioners, with high volume
oil pump with cryogenic pump gears in it,adjustable timing gear on the crank shaft and a windage tray with an crank shaft scraper, and I managed to get hold of a Ford GT (new model) water outlet which has a massive outlet diameter with remote
oil filter etc. Working now on what to do with the plenum, but most likely won't do that till its installed so I can see exactly what to do.
Just a small massage, so I can rev to about 7-7500 safely.
After all this time you'd reckon I'd have a colour in mind, but I swear it changes almost daily I think.