Dave Sullivan used to own Sacramento with his Duster in Super Street without an electronic throttle stop.
I know/knew Dave & his wife {Kathy? not as well},
she drove the Duster last I saw of them, she did very well too,
they also had purchased an old friends blue 69 RR she drove in Super Pro,
when he updated the Duster, damn it's been years now since I saw either of them..
Last I recall IIRC he drove a 70-71 Hemi Cuda, constantly working on it &
trying to get into the 8.90's {or maybe it was the old Pro-Gas 8.50's ?}
even back in the Fremont/Baylands days...
He was at one time, not sure he ever got it figured out, that was a cool car...
So did Dan Braudrick in S/G 73 Opel GT/SBC Glide,
it was all tune-up, trans-brake & mechanical throttle stop,
Sacramento & Sears Point
Doug Bracey in S/G 41 Willys 7-Up p-u/SBC Glide was great at one time,
with no real electronics, just tune-up, mech. stop & trans-brake
at Sears Point & Sacramento, he won the Winter Nationals like that too...
Dave Smith Jr. the old Sac Raceway owners son was pretty good too,
he had a Daytona, like 85ish with a BB wedge, running 9's in brackets
they were all out testing all the time, just like we were too...
Practice makes perfect, well close anyway...LOL
I never liked Sportsman 0.5 tenths tree, 3 bulbs count down one after another
I ran a 0.4 tenths Pro-tree almost always, much better, all ambers at once...