[explicitone]

I would strart low on the timing like at 6 and read the plugs and work your why up on the timing but I would not go over the stock 10 the extra couple of horses you might get from the 12 timing is not worth taking a chance and blowing something up just play it safe and have fun unless you have money to fix the motor should something go wrong or you racing in a class of any sort then try to get what you cant out of it . but for the street and test and tune nights I would play it on the safe side