I have nearly completed my resto of my 68 firebird 400. I now have an issue with the alternator not charging. while running the ammeter in the car reads 5-10 amp drawl. I "full-fielded" the alternator and it charges properly. I replaced the voltage regulator (external type) and replaced all of the connections under the hood that have to do with the charging system...i took out all the crimp connections and soldered all and then checked for connectivity with a multimeter. I next inspected the ignition switch and the plug behind it. the switch itself seems to work, the car starts and accessories run. I have electricity coming to the constant-hot terminal labled "Bat". I placed a jumper wire to from the "Bat" terminal on the plug to the terminal labled "ign" and no charge occured. I am stumped as to what is going on. I cannot think of what to do next. to reiterate: problem sorces checked and eliminated...1) alternator 2) voltage regulator 3) underhood wiring 4) ignition switch.

Any thoughts???....I know its not a volvo, but i am sure that most of the understanding regarding these systems is univeral plus after a $10k restoration this little issue is really pissing me off. please help