Question 1 answer: To extend the life of the points.

Question 2 answer: Your radio and heater blower are high amperage and your fuel guage is low amperage. The fuel guage takes a different type of reducer to work properly.

An alternative to reducers is a battery with a 6V tap on it. All 6V accessories can then run off the tap.


"It's just a phase. He'll grow out of it." Mama, 1964

1956 Chevy 1/2-ton 3100
1953 Chevy 6100 "The Yard dog"
1954 GMC Suburban Now with a new proud owner.