I'm working on my 46 Chevy pickup truck and I am going to replace the spark plugs in the 1953 235 6 cylinder that's in it.
I would like some input on what heat range of spark plug is recommended for this motor and this 6 volt system. This was my late father's project and I haven't really done much to it. There are two different types of spark plugs in the head right now.
Is there any specific make and number a spark plug that you guys would use?
