What is the situation where you would want a cam with more intake duration than exhaust with a big block? Was cam shopping and ran across a cam with 12 degrees more intake duration at .050? It has 242 degrees of intake and 230 of exhaust.
In some turbo applications, keeping the exhaust closing to about 0 degrees at .050 is desirable when you are running into drive pressure on the turbine. A lot of exhaust duration starts to really hurt performance because the exhaust will dilute the intake charge. Typically works out around 230 degrees exhaust duration depending on LSA.
AG.
