Mounted the factory fuel pump

75slant6 said

Yea I was wondering, what are all you efi magnum ppl using for fuel pumps? Can I just put the ram sending unit in the stock tank or would I have to cut the tank open and baffle it? I would like an aluminum hotrod city garage tank with a built in pump but that's a lot of dough. What's the best route?

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I used the stock magnum fuel pump because it already has baffling around the pump. It was a bear to make this work though. I've got two posts showing how I made it work:
https://dartslantsix.wordpress.com/2014/10/05/gas-tank-modification-part-1/
https://dartslantsix.wordpress.com/...on-part-2-plus-fuel-pump-module-modification/

You can use an external pump, but it would be best to baffle the tank to keep it from sucking air.

Another option that I think I'd gravitate towards in the future is using a 2000 era GM F-body pump assembly. It looks a lot easier to adapt and it is lower profile. There are pictures towards the bottom of this thread:
http://www.corner-carvers.com/forums/showthread.php?t=48527
This also has baffling included.

Hope this helps.