what different applications require an inline or an intank fuel pump ?

when you ad an inline fuel pump, do you completely bypass your stock pump ?

 

An inline pump is a supplement to your intank pump. For high pressure applications like FMU setups, an inline pump is better suited. For lower pressure/large injector setups, an intank will do fine.

 

does it matter where the pump is mounted in the fuel system ? I see many turbo kit users mounting theirs in the engine bay, but i have heard that its better to mount in the rear as the pump pushes better than it pulls...

 

Well that and the Noise you have to factor in w/ the inline.

 

Ok i did some reading and im square on the fuels pumps....

but i was wondering where you tap the power source into ? i saw on dustin's page he has a power cable that runs from the pump to somewhere up on ( through?) the firewall ? it also mentioned a fuel pump relay ? what is this ?

 

This should tell you all you need to know concerning inline pumps.
http://www.theoldone.com/articles/fuelpump/