My friend George who built the one and only GP5 uses Airflow on his small block Chevy installation and has never had a vapor lock issue, but I suppose that's because it's a liquid cooled engine and not an air cooled issue?
Fred Johnson Reno, NV --Jeff wrote: Some have a pressure relief valve, but running the pump will also usually flood the engine. Airflow Performance has a manual purge valve so you can circulate fuel through the flow divider back to the tank, but that still doesn't cool the stainless steel lines from the flow divider to the cylinders. It seems like every injected engine has it's own technique that it wants for a hot start. Once you learn what your engine needs, it isn't a big deal. Until you figure it out, it can be a bear. -Jeff Scott