Need 318 help/advice

MOPAROFFICIAL said

All most of them need is a good tune up.the 4 brl mostly just picks up the 4000 and up...which is near the top of the cam range.

Click to expand...

That explains alot. In my 318 with stock heads and the summit .444 cam, it would run up to a point then sorta "level off" in the pulling power...it was like it was done at 5000-5500 no point in flooring it any more...itd be doing 100 miles an hour though with 3 91s...