Thank you for the polite reply. I’m 66 years old and grew up in the era of 60 and 70 muscle cars. I have also had the pleasure of driving plenty of modern muscle especially my brothers Z06 Vette (scary beast). I raced a 67 Mustang 271 horse with many engine upgrades and 411 gears but had a good pair of slicks. She launched really well. Coming from a motorhead family my two older brothers and I put in a lot of time at KCIR (Kansas City International). One had a 65 GTO he bought new and still has and the other a 72 Z28 that he also still has. Bias tires were all we had back then and they did well on the drag strip. I am just now after retirement getting back in the hobby. Much has changed. My intention was not to say that old technology can compete with new era muscle cars but I know that when set up correctly the old stuff can to a large intent match up. I’m am not adverse to running drag radials as long as they are DOT. Traction bars are fine if you have wheel hop. I tied my springs with additional clamps forward of the rear axel. I won’t know where I’m at until I can gain more grip. I do believe that going to a slightly larger BFG T/A will not enough to get me where I need to be. Tire technology has advanced light years. I thought maybe someone hear could provide additional clues. Thanx for reading and replying.