diagnose my 318

this is summits version cam and lifters 145 dollars. close to same specs i beleive. hows the sound of the 268h?

Got a bit of lump to it, not bad. If you are intent on running the BBD and tall gears you might want something else. I ran it last year with a 2.76 open and it really didn't like it, kind of a dog from out of the hole. I have since upgraded to an 8 3/4 with 3.55's and a suregrip. You really would want a 4v carb and headers with a 2 1/2" exhaust to compliment the cam along with rear gears.

I'm not trying to dissuade you, it depends on what your future plans are. If you are going to make upgrades in the near future then run it.