I think you would be well advised to go back to the glow plug.I have had them go bad even they appeared to work t They would start it up fine and run ok on the ground but as soon as I tried to take off they would lose power and/or quit. The element gets coated with cooked oil and lose thier ability to glow with the catalitic action with the fuel needed to sustain combustion. A new plug is the standard fix in these cases. I tried a new one and my problem went away.