yeah thats not good at all man, something is definetly up, a stock ve with even stock exhaust in a b13 can easily run mid 14's on street tires let alone slicks. Yous should be well into the 13's on slicks with the stuff done to yours. Something definetly isnt right, even if track conditions were horrible it didnt look like you were spinning or anything like that that would cause a slow time, your 88mph trap speed is another give away to a problem,
My old se-r with a fully bolted on de with S3 cams trapped 97mph and ran 14.2 on street tires on a crappy track. I mean you can go look at what others with ve's with your mods are running, most on slicks are in the 13's I would definelty look into it