Engine Heater hose routing

40sedan

Member
Aug 21, 2019
16
6
13
72
Roscommon, Michigan
I am putting a heater in my 40 but don't know where to take the water flow from ( top or bottom hose from water pump) The metal coolant rail has been connected in the back where the outlets were. Cannot get back there because of firewall. Engine is a 1990 5.0 EFI
 
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