1949 Chrysler Town and Country in Chrysler Products - General Posted Friday at 05:28 AM On 11/23/2020 at 4:30 PM, JFranklin said: Stay 6 Volt unless there is a specific reason to change. An electric pump will get the car started faster on cold starts and after sitting for a while. They can be set up just to add a boost if needed. It is easier on the starting motor if the gas is already up to the carburetor. My '48 Plymouth needed the missing heat shield replaced to solve the same problem of hard starts when hot. They had heat shields before we got stuck with ethanol laced gasoline. I have two eight cylinder T&C's and a couple other eight Chryslers. They all crank and start fine on six volts. Proper heavy 2/0 battery cables, a good starter, quality ignition parts and a really good group two or.........I prefer the group four six volt battery as it's 900+ cranking amps ....way more than the group two at about 600 cca. The group fours are also a little bigger and require slight tray and hold down modification but last up to six plus years for me. Group two's max of three+ years. All my Chrysler eight cars always start fine. JMO.