If you are interested in Octane increase you may want to check into this product.
I mix it with 91 for my 750 hp Foxwell engine with great results.
YMMV
BOOSTane Mixing Chart
https://boostane.com › About
Jeff is very very good! Does anyone remember the DCB that Jeff worked his magic on?
After seeing the results and how good it was Dave told Jeff he would never let a bare hull out of his shop again.
He was overwhelmed by people wanting to have what Jeff had done.
Just saying. :)
Thank you for the info. I am going to start using my Canon A1 again. I have had it since 1976 when I was in the Air Force.
It has been a great Camera over the years and pretty much straight forward as far as taking photos.
I had some great photos of Indy in 1980, numerous air shows, AC Shelby...
You could also try FLITZ. It is a metal polish and also has anti-corrosion properties.
I use it on all of my rifle barrels as well as wooden stocks. It is also safe for plastic.
I also use it on my polished aluminum valve covers and air filter on the Hallett.
I hope this helps. :)