Hi guys,
Sorry to reply to an oldish post but I have been running an O.S. #8 plug in a Force .28, it runs well since I tuned it, but its too damn hot I mean I was getting temps up on 300 f.
I today got myself an O.S. A3? I think much cooler and no diff in performance about 30 f less in temp.

There seems to be a lot of conflicting responses about using certain plugs?
The ofna manual for the Jammin states you should NOT use #8 or MC-59?
Perhaps they are indeed too hot for the force engines.

I was wondering if any1 else has more ideas?
I believe Force reccomend LONG plugs is this a must for using long plugs or is there a norm?
Any more tips on this?

Nick