i had to take out the needles, as my old tach had halo gauges on them (previous owner) and glue all over the faceplate. so i had to use my old tach, new tach cover

what a F'ing mess. i put the needle back on, and it either wouldn't work at all, was sticky, or read 1200rpm was 3,000rpm. then id take the needle off and move it down to about the right spot and it would stop working completely....

so all of my sunday got spent f'ing with this thing, but it finally works. it says idle is at about 800rpm, which sounds right. and it doesn't go all the way up to 8,000rpm at 2/3 throttle.

dont know how accurate it is, but it looks believable. and since its a auto, thats all i care about.