Well, I had a 3406 cat dumpin' 530HP to the wheels. I was running double and triple loads, bypassing scales, etc., and had to "LOOK" lite. :-)
But when I smashed down on the foot feed, twin 6" round tubes of black smoke would pour out of the exhaust. I'd race Porsches up the mountains and beat 'em! Empty flatbet haulers loved to make bets on who'd get to the top of any given mountain first. Outrunning corvettes in the Mojave was a good way to pass the time also. Made a ton of side money, loaded or empty. Paid a lot of tickets. Bought a lot of permits. :-)
Well - you ran in a "faster" lane than I!
I gave the road up in 1982 after 4 years. All of it was amazing...saw more of this nation than I knew existed (which was pretty good for a 22-26 year old little country girl.)
Are ya still drivin'?