I ran a spool on the street with 325/50-15s. One weekend cured me,I'll never do that again. I swapped a cone-type into there, and readjusted the turning torque to 130ftlbs from the 120 that I run with 295s.
I saved the trac-Loc for the 4.30 track gears.
But I only have 400/430 hp.
Yes I really had several chunks at the ready at all times. Most are now sold, with the largest now 3.55s. I run the 3.09-833, so it takes off like 4.10s. I'm good with that.
That spool was great at the track tho, and no spiders to shatter nor pin to launch. I guess I should sell it as I haven't used it since about 2004.