I checked an old manual and it depicted the gas tank as having a strainer. Since I had almost a full tank and it looked like one must have an empty tank to get to the strainer, I choose to check the fuel pump flow volume first. I unhooked the fuel line between the tank fuel pump and the engine fuel filter. After connecting a hose from that point to a container, I turned on the ignition for 30 seconds. In that short a period I was able to fill the container with 3/4 of a gallon of fuel. So I must assume that it isn't my electric fuel pump. What I didn't mention in my initial thread is that I had modified my distributor by installing a Perlux electronic ignition module and coil. The previous contributer jogged my memory to recall that my problems started after that installation and maybe my advance is being restricted because of that modification. I'll check that out next, although I still am puzzled as to why I can attain 5500 RPM without a miss as long as I am not accelerating hard? I appreciate those of you that have offered your advice. Gregg