Hooking the choke hot lead to the coil will in fact drop the voltage and act as a very effective rev-limiter, as the ignition will run out of voltage around 4700 rpm. This is one of the most common screw-ups Pantera owners make. Find another switched-voltage tap. Many guys use the (unused) hot tap on the back of the stock alternator; of course, that convenient place is unfused....
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