I agree..are you hooking?
If so, get rid of the Weiand intake and fine a Performer or LD340 dual plane intake. The cam is a bit too much for a 318 , but not impossible to utilize. I use an XE268 cam in my 318, which is large for stock compression, but it works great. The gearing is good, as well.
Honestly, I cannot see this motor running this poor of a time. The parts are a little too aggressive for a 318, but I wold still expect the same time, if not in the 15s to high 14s at least. Are you sure you do not have a failing ignition, a misfire, or just no traction? Also, are you running a four barrel or a two barrel on a 4bbl intake?