road car cam for my 318

Sounds like a good tune is all that is needed. You might get better mileage with a seat of 3.23s as well because the engine will be in its sweet spot at cruise speed . I just got 18.8 with my Barracuda and it has a 221/229 cam with .550ish lift , 800 AVS , 904 and 2.76s. And I can smell the excess fuel in the exhaust so Im sure it’s running rich .