keeping front end too tight?

[L79racer]

Would keeping the front end too tight slow your 60' down by not letting the front end lift and let the motor accelerate fast enough if it doesnt have enough power to shoot the car forward? I'm still working on getting my car to 60' better. best so far is a 1.42 but I think it should be easily in the mid high 1.30's. Car dead hooks with glide with 1.80 first gear and a 5500 stall converter. 4.56 rear gear and a 30" tire. It goes 10.00's @133 to 134mph. I have an I/C of 41 and 8.5 high. I'm thinking of pushing it out to about 47" long and 11" high and also loosening the front shocks. I thought it should be wheeling easily and I would be fighting to keep it on the ground but it only gets a little air under the tires. With a 98" wheel base and the engine set so far back in a corvette it should be going in the air. Any thoughts?? Here is how it leaves.