Back before converter technology advancements - they were worth some ET.
But the risks were too high.
Thanks
So neutral drops being
"standard operating procedure lets say back in the 70's"
https://www.youtube.com/watch?v=wNJabHbfe2w&ab_channel=UncleTony%27sGarage
is not exactly accurate.
Not SOP ever that I recall. They were used in the eliminators and class when needed. The special units built were good for 15 or 20 runs (depending on the car) then things got sloppy again.
The units we built for Chrysler I think were for the 67 Nats when we were battling some Fords and Chevies for class.