I have a Clay Smith mechanical fuel pump on my small block Duster. Thing was a pain and caused me all kinds of grief. The pump body is huge, have to grind away a boss on the bottom of the block and it still barely fit. Then there's also the water pump inlet... To make the lines work you have to get an Edelbrock bottom plate, pn #1797. You plug the side inlet/outlet holes and run the lines out from the bottom since obviously there is no room to do it from the sides. Unfortunately, that part is no longer available! You can get pre-made carb. lines and a bracket that hangs the regulator off the pass. side carb. stud. I had th whole setup from AED (see below) but when I went to install it, the regulator was hitting the intake runner. I ended up making my own version. Ultimately I didn't need a bracket, the lines hold the regulator sufficiently. Here's the AED setup, which is also no longer available. Didn't work for me anyway. My version. Hope that helps.