RPM Sensing

[lwindrem]

I have Complete Code for a Simple Ignition system 9 pages long -- it works well 100% accurate RPM Readout buut some what over kill for RPM readout
I can display it if someone would be interested helping me trim it.

[richard]

read this
http://www.picbasic.co.uk/forum/showthread.php?t=16153

what you have posted so far is unlikely to get much of a response.
the more info you provide the better, at least post your best attempt {in code tags} with chip type and config, pbp version ...
connection details better still a schematic even hand drawn along with some detail of the tacho input signal and how its been conditioned
to become a useful pic input will help