Originally Posted by
John Tag
Hey Tim start at 4.60 and check temps. That should get ya close on gear for a large track that flows. If the infeild is sorta tight goto 4.80 to start. Make first run short 4 min and temp motor to ensure. I know Larry and Jason ran 4.5 at Jackson on about same size track med timing hole.....
Thanks John
also you have an email also. (for an Order)