Up here in the northern states (WA) the weather's turned cold, and with the day-long frost, I've noticed another new development. My dash gauge (volts) shows almost red (+18 section), but when I test the alternator at the battery terminals, it's putting out only the normal 14.55-14.8. I had it tested at Schuck's and their tester showed normal operation as well. The gauge seems to come back down to normal after a while on the freeway. Does the cold affect these gauges that badly? Also, where the hell's the regulator on an '86/305? I have a chev internally regulated unit in an old '59 Ford, but when I went to the parts store, they said that the '86 k5 uses an externally regulated alternator. I looked all over for the crazy little piece the guy showed me, but couldn't find it. Any ideas?