Q-T Valve Screws circa 1953.
Are they as advertised? Are they any good?
If they were, we would have seen/heard more of them.
Attachments
Q-T Valve Adjuster 02.jpg (81.04 KB, 131 downloads)
Q-T Valve Adjuster 01.jpg (107.9 KB, 125 downloads)
Q-T Valve Adjuster 03.jpg (42.37 KB, 116 downloads)

Last edited by buoymaker; 12/09/2022 11:30 PM.

"Adding CFM to a truck will only help at engine speeds you don't want to use."
"I found there was nothing to gain beyond 400 CFM."