speedo vs tach

[shrubberman]

I have just recently put in a different circuit board in my tach. But After reading some of the posts, I wonder if it is accurate.
At 2500 rpm my speedo was reading about 57 mph. Does this sound right or wrong to anyone. I didn't replace the drive because mine was in much better shape. But I might have to if they are supposed to be a match.

[skids]

It is way off. At 60mph in 5th, you should be running about 4000 rpm.

[shrubberman]

Ok, thanks skids. I guess I have more work to do then. Good thing I didn't try to redline it, huh?