cleaning up the slant six head

1930 said

I have been told that for street use polishing chambers like that would not only be a waste of time ( cause 100 miles down the road they would be all carbonized and way ) but it may actually cause more problems with quenching/flow.

Either way they sure look pretty.

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Have a look at a spray gun for painting.....nice and shiny....there is a reason for this.....makes it really easy to clean.....when the gun gets scratched up over time, it gets harder to clean the paint off.

Carbon doesn't stick to a highly polished surface to well.
A bottle of injector cleaner every so often will help keep it clean, as does giving it the berries every so often too.

All the engines I have built over the years have made really good power for the work and parts used.....none have failed.
I managed to see one 10 years after I built it.....it was an old fella driving it (was a young fella I built it for), and all it needed at that time was some plugs, and a tickle of the carby......but I could tell it hadn't been looked after, I took the oil cap off and had a look....could see sludge in there.....only get that from lack of oil changes.
The plugs were so worn, I wouldn't be suprised if they were the ones I had fitted when I built the engine.