So my cars pretty much done its an 05 mustang gt with a built motor (10:0.1) with stage 2 blower cams, ported heads, intake, with an F1A prochager. Anyways they just finished installing the cog setup yesterday which looks sick by the way. So I bought the jpc racing triple pump return style system about 2 months ago and dropped it off at the shop lastnight. So got a call this morning from my tuner and he said he wasn't to comfortable running this kind of fuel system on my car for a couple of reasons. The kit came with 8an feed line and a 6an return line. He said it would need either an 8 or 10 return line to keep up with the fuel system. 2nd he preferred to use a y block this kit doesn't run one, and 3rd one I didn't understand too well but he said with fuel getting dumped into both rails he was worried some of the cylinders would get less fuel then others and could cause problems later on, and wouldn't be able to diagnose which cylinders would have the issue. So I'm stuck right now I'm not sure if I should just tell him to install it or not. He just said he would never install a kit like this on his cars but if I wanted he would install it for me. Any ideas?