> His car cuts out and I can't tell him what it can cause it.
> He says, the tachometer drops, the engine cuts out, than back again.  So, he
> can't drive it and it drives him nuts.

Zoltan:

Sorry to be late on this, but I was hiding over in western
Colorado:
http://jones.colorado.edu/jones/MouseCliffCamp.jpg

Anyway, this sounds to me like the classic Hall sender
failure....  When mine was going, it would drop out like this
up to ~2000 rpm, then be fine above, but when the tach drops
dead and the motor cuts out, look carefully at the Hall sender.

Don't let them tell you to buy a new distributor.  You can
get the Hall sender.  The Bus Depot, for example, now lists
them:
http://busdepot.com/details.jsp?partnumber=052998065

                                Richard A Jones
                                Boulder, Colorado