I problem I see with a tach like 73AbodEE's is will it register below the 1000rpm mark once the engine starts? His looks to be 'stuck' at 1000 rpm. The idle speed for my 225 slant 6 is 500 rpm I believe. So if a 'stuck' tach won't register at low rpm's it wouldn't do much good. Of course you won't know about a sticky tach until it starts behaving that way.
Glenn
P.S. I see Auto Meter is made in the USA>
