I have a 72 240Z. I thought I had a fuel starvation problem. I've installed a new mechanical fuel pump. Blown out all lines, Removed the gas tank and had it refurbished by a professional, replaced all hoses and made sure there are no restriction in the lines. I just installed an electric fuel pump near the fuel tank. I have not field tested the electric pump while driving as of yet. I'm waiting for a replacement fuel indicator. Here is my question what else could be causing the problem? The distributor has been replaces with a newer electronic distributor. My Son did this and I believe it was from a 260Z. The car also has a MSD ignition system and Coil. On level ground the car runs great. I can rev it up to 5,500 rpms in all gears no problem. I start pulling a hill and it just runs out of power. Anyone out there have any ideas? Thanks Don Just thought I'd and a note: I've had this car since it was new.