I am in the process of installing various gauges on my 65 Coronet and need some help. The Volt gauge instructions say to run a wire to a good engine ground, the pressure gauges and temp gauges say a good engine ground close to the sender. My question is can I run a heavy gauge ground wire from the engine block to under my dash and connect the all the different gauges at the point under the dash? Any other advice would be appreciated, also I have a number of wiring books but apparently I'm to stupid to figure it out (I tend to way overthink things). Thanks Al