New personal best E.T

It's a 68 318 with stock bottom end.J heads with 1.88 intakes and 1.60 exhausts. Edelbrock 600 and performer intake.727 transmission and 3.55 suregrip. The cam is 268/272 duration and 0430/0450 lift.T/converter and cam are my mistake I think.Should be faster.
what is the altitude of your track?