bought a 1965 f-100 with a 429 in it, previous owner did not know much about the engine, said it was a 1975 year model, intake has d6ve-9425-a3a and heads have d3ve-a2a, it has a holly 4150 carb, i cannot find the number for the engine, i looked at the back side where can that be found, looking to put alum intake, headers, and eventually a mild cam, anyone have suggestions or more info about this engine ?,, seen a good few tips allready,