Cool deal you took the first step on your way to building a Cobra kit car,it only gets more complicated from here........look in never ment that a Cobra drove like a dump truck.My FE in stock form from Ford ran 30 plus years on tune ups and
oil changes and 2 water pumps and a new fuel pump and had 165plus thousand miles on it........thats darn good in my book, so yes i say build it on the conservative side and take care of it and it will be there for you when you need or want to go somewhere,to me 400 hp is more fun than 600 hp and easier on the budget.