Im using 350 big valve heads on my 327 i drive it every day with a real wild cam. to school and then to work. i also have a edelbrock rpm intake with a 5 in. lift on the 600 cfm carb. it runs great and when i want the power then i have it if i just wont to putt putt around town i can do that too. i love the big valve 350 vette heads on it they add a lot of hp.