Best way to proceed with improving up 427 Windsor street setup

[CraftEngines]

That is not the typical camshaft we use in these engines. Although alot of times our customers like to dictate what goes in their engine whether it is a good choice or not. We also do not use 950cfm or Davinci carbs on our engines. That being said we have had customers go with this camshaft and be very happy with the performance in the lightweight, stick shift Cobra. If a customer prefers a more radical engine, so be it. All we can do is make recommendations, but end the end it is the customer's engine. We have received the heads and we have to question the mileage that has been put on this engine. There was crazy amounts of carbon built up in the heads along with alot more wear than usual on valves and guides. We honestly thought these were off a 50K mile engine or more.