I'm going to run straight water with a bottle of water wetter in my cooling system.....I'll be O.K.?

All iron everything, factory radiator (1971).

I've heard of some guys adding something to lube...like a small amount of coolant...to aide in lubrication.

Other than that....hmmm....I heard there was something they used to use....

http://www.racerpartswholesale.com/redtech3.htm

we use water wetter in our dirt track car and add it with water only and have had no issues at all in the last 7 seven racing seasons .

Gordon,

Depending on the water quality where you are at, you might want to consider using distilled water only if your tap water has a lot of minerals and is considered "Hard".

Distilled water and Water Wetter make a great combination in a clean cooling system!