I agree 100% Don. Too low of compression for the cam and the heads. Compression coaxes the air thru the head and the higher it is the faster the air movement and these heads need all the help they can get IMO. Here's another vid. I was almost out of gas, had about 1.5 gallons left. The gauge reads E and the pressure gauge reads low pressure after heating the tires. Had to wait for fuel pressure before I could stage and shut the pump off at the end of the track to save the pump. https://youtu.be/rScO2Oa34qY