12v sorce

Doober

Moderator
Jun 2, 2003
14,704
1
38
Catalina, AZ
www.cardomain.com
You don't need a voltage source for the sending unit, just the pump. The gauges are all that need a voltage source there, which you can just use the original source for the gauges for. I'm not sure what amperage is needed for an MSD box.
 

grizwald

Top Fueler
Feb 21, 2008
3,300
0
36
Ontario, Canada
correct me if i'm wrong (it's been known to happen), but i think MSD and similar ignition boxes only need about 6-7 amps to operate.
 

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