I hope someone can help me solve this riddle. I have a 68 Camaro. Recently replaced all the wiring harnesses, bought M&H wiring harness from Rick's 1st Gen. I have a new dimmer switch. All negatives are attached to the battery, all connections are sealed with electrical tape. And I have a one wire alternator. Here's the problem. The headlights work fine in low beam. When I switch to high beam, the lights start to blink off & on after about 5-10 seconds. They don't stop blinking until I return to low beam. Any ideas why this is occurring? Thanks.