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Old 10-07-2014, 12:06 PM   #3
motornut
78K & 79C Jimmys
 
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Join Date: Nov 2009
Location: Ottawa Ont CANADA
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Re: Mark V fuel delivery

Quote:
Originally Posted by slimneverdies View Post
Hey guys, I'm running into a scenario where I'm putting a Mark V 454 into my 78 C30. The tanks look to be original for 78 judging by the lines going in so I take it there shouldn't be any electric pumps in the tanks. From what it looks like this motor doesn't have provisions for a mechanical pump on the front so I take it I have to put an electric pump inline. I'm curious to know if I would need two electric fuel pumps since this trucks has dual tanks and how do I wire the pumps up with the switch so only the pump/tank that's in use will have power?????

Thanks
Slim
do you need a return line?(my 78 didn't have one,79 does)
stock pump, would be 2,1 in each tank ,might be worth getting F.I. parts/truck?
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1978 GMCJimmy4X4-350/203
1979 GMCJimmy4X2-305/350
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