[68blkbrd]

Drove my car to work 85 degrees outside.
Car sputtered intermittently on highway after about 25 miles. Temp reads great at 180 (new
Optima 4 core radiator). Car then stalls. I check glass fuel filter it's dry. Try to start it no go. Cool it down for 25 minutes and fires up. Fuel pressure shows low 0-1 psi. Looks like fuel is just gurgling into filter. Limp it into work. Restart car at break time (cooled down) and fuel pressure gauge reads 6 psi (fuel filter full). I believe I'm getting vapor lock or something. I have a summit mechanical fuel pump, performer rpm manifold, Holley 750 vac sec carb. Happened twice now even on a cool day. Why would the fuel pressure drop so dramatically when hot? The fuel line is routed away from heat sources. Thought it may be the fuel pump but works great when cool. Timing is good. Installed a new pump today still bad fuel pressure into the filter. Installed a new fram inline filter too. Idle is ok. I checked all my lines. Popped the gas cap. No improvements.Just ran a fuel line to a gas can and still little pressure to fuel filter. That would rule out a line problem from pump to tank. Car gets enough gas to idle and run. Hell, I can even wing the throttle and still no problems so I can say the pump is working but seemingly not at full stroke. The Summit pump that was on before I had acutated by hand and am getting pressure so It's not the diaphragm. I belive I am under the cam eccentric when installing the pump. I am thinking an electric pump now but I really don't need one.
Still searching for enlightenment...No Norwalk for me.