In an OBD 1 B18C5 with stock compression. Apparently the car knocks with 93 on Hondata. It's not my car I dunno what the base timing is set at, but is it alright to run this fuel (stops the pinging)

 

if it works why not....thats wried though he gets problems with stock B18C5

 

Won't damage O2 or anything?

 

http://www.superiorfuelsinc.com/torco.htm

I'm thinking that is their leaded race gas. O2 fouling or cat problems (if that is still present) might occur if you use it. Probably should go with the "100 Unl" (unleaded I'm guessing).

Edit, here is another site confirming:
http://www.maxwelloil.com/race....html