For a 318, that is very impressive. I am basically running the same top end and cam as you, but on a stock, 360 short block. My compression came out to 8.7 with the EQ heads. Yes, the pistons were a mile below deck at TDC. Race weight was almost identical with the tool bag and full tank of gas.
My best pass was a 13.44 @ 98MPH. My 60ft was 1.91 and the 1/8mi was 8.53@81MPH.
The biggest differences are I am running a 9.5" 3200 stall converter on street tires. Low 1.9x is about the best these tires can do. If you installed a good converter you could easily drop your 1/4 mile ET 1/2 - 3/4 of a second.