[italcarguy]

I am running Buttonwillow in a few weeks with the Vintage 2.5 Challenge series and was wondering if i can get any input on gearing. The track configuration is clockwise race #1 which is the rull track with the bus stop in the middle of the back straight. also, it will use the mazda hairpin instead of the hairpin that spits you out onto the esses. i am debating to run my 5.12 or 5.37 with a .85 fifth. anyone have any kind of input, i'd hate to drag both rear ends to the track and do a possible rear end change.