What will it run?

Finally going to take my 64 barracuda to the track wednesday. I have about 400 miles on it, seems fairly strong for what it is. Stock factory 64 273 longblock with 84k miles, summit .450 lift hydraulic cam, edelbrock tm5, 72 340 thermoquad and air cleaner, msd, factory exhaust manifolds, 40+yr old thrush side pipes, spec clutch, 4spdw/ 2.45 first gear, 8 3/4 w/ 3.23 posi, original d60-14 polyglass tires. I guess mid-low 15's.