Thermoquad Wanted

Well tuned would be your doing.
A 318 T-Q, stock, would perform well on a stock 318. Once you put headers on it...chances are your running lean if it's a new T-Q or right about where you should be if it is an older T-Q.

You can bend up AFB rods approx. 3/4 shorter to fit the T-Q rod length and help tune it up.