Before benchmarking and modifying a new hemi head for my fox build I decided to update my old flowbench with a new clear acrylic top. I made up some string tools to allow me to look into intake and see where flow is going but also read about using string on a scrap valve to see how air flows below the valve using thin thread. The clear plastic lets me look up and actually see the valve. I also made the bore adjustable with slide in sections held in by a pin so I can go from 2.75 to 3" in 1/8 increments. I made a new valve opener just for the HEMI as it was difficult in making my old clone opener work accurately with a canted valve head. This unit mounts on the rocker pedestal with a pin.
Old top
New top and pictures
Old top
New top and pictures
