318 build #2 "cost minded" for the '74 Duster

I took my car to Milan Dragway a couple weeks ago and I'm totally embarrassed on how the car performed. They are going to the 1/8 mile racing, which I have never done before. And I don't like it either. Anyway it ran a 10.65 at 77.5 mph. The 60' was really bad at 2.85. I blame it on the 12 year old 245/60/15 BFG tires that are hard and spin very easy. The car is a 340 with a 360 crankshaft and Magnum heads with 340 exhaust manifolds. So it's nothing special maybe 300 horsepower but I expected to be quicker than that.