wanting a rev counter in the next couple of weeks for my 2L pinto tiger S6 if anyone has one to sell

I've got an 8000 rpm / four cylinder one spare - it's positive earth , I just wired it up `backwards` and insulated the mounting
Any use ?

May be of interest but the positive earth bit means nothing to me at all as i dont have a clue about wiring.

Ive just sent off for one of these http://cgi.ebay.co.uk/Rev-Counter-52-mm-diameter-Tacho-Kit-Car-rose-joint_W0QQitemZ190257668429QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?ha sh=item190257668429&_trksid=p3286.c0.m14&_trkparms=72%3A1683|66%3A2|65%3A12|39%3A1|240%3A1318 It hasnt arrived yet so cant comment on quality, pod to mount it on the dash was £4.50 I think.
Cheers,
Bob

[Edited on 11/4/09 by splitrivet]