Old Henry
Well-known member
How about using a leaf blower and some kind of smoke source to see air flow with the hood opened or closed, hot air must be getting trapped under the hood.
Thanks for the suggestion. I'll give it some thought.
How about using a leaf blower and some kind of smoke source to see air flow with the hood opened or closed, hot air must be getting trapped under the hood.
Here is the underhood air flow for the 1939 Ford, not sure how it compares to 47. See 3rd paragraph from Ford V-8 Album, I couldn't find any air flow information under 1947 Ford section, hope this helps.
Your symptoms lead me to believe you may have a bad ballast resistor on the coil.
Since you are using a Stromberg 97 Carb., which is very touchy about any air flow restriction, I think I would have taken the air cleaner off and seen if maybe by lifting the hood you were forcing more air into the Carb. Restricting air flow is like useing your choke thereby causing a richer mixture, not good at high altitude.