Thank you guys for a great website and tool to help me build my first ABODY. I have been a Chevy man my whole life but I got the opportunity to pick up a 1974 Duster from a friend. This car is all original 318, with a 904 trans factory A/C with 37,000 miles. It has had a period correct four barrel intake installed and a Edelbrock 1405 (600cfm) a Blaster coil, and a pair of long tube headers. Car is in great condition, but I am having some trouble with it back firing and popping. As of last night it ran better but I noticed the battery will not hold a charge. The Voltage regulator looks like its leaking on the fender. Is that common? Any help would greatly be appreciated.