actually they work better with 767s in my experience. good wear and better power. the t-purples (with the neg spring bent slightly soft) or equivalent are the way to go. if you dont have those, try to bend the postive spring 180 degs and the neg spring to a bit less than 180. i wouldnt go over 15 deg timing. 18 max but start out with 15. thats what works for me, hope it works for you as well.
[YOKOMO BD7][REEDY RACING][TEAM ORION]