Hey guys gonna put a fass titanium 150 gph on my 99 ram dully I know how to do it with the in tank ones put not with the ones mounted to the block instructions would be great or an instructional video

 

Block mount should be easier, already has a draw straw in the tank. If you're not going nuts with power, the stock supply size is ok.

 

mine is metal hose tho

 

It's not all metal. There is rubber or plastic hose somewhere. Most likely you'd want to disconnect the stock stuff at the tank and connect to the supply there. Or install a draw straw and drill a hole in your tank and deal with the 1/4 tank issue (or deal with it when you install).