Cutting front springs

[JimNolan]

F57ORD,
   They are MadDog headers that I had ceramic coated. The engine I'm proud of. It's an FE Engine of coarse. I've got two engine calculators and one says 385 hp and the other says 420hp. It idles rough but won't die at 650 rpm and 13 inches manifold pressure. For all intents and purpose it's a 406ci / 385hp  engine with air conditioning. Jim