Blows Main Fuse at 1/4 Throttle???

Overcharging???

Gauge says 12-14 Volts on the throttle? I think that is fine unless it spikes so fast and blows the fuse before the gauge can see it??

The alternator is new but I have been Revving the chitt out of it having alot of fun with the car. Possible??

Voltage Regulator?? It is new also?