The timing when you install it ? Or the ignition timing ?
The ignition timing is gonna vary depending on the rest of the combo . You can run a lot more with aluminum heads than cast iron . Your going to do a little trial and error until you get that where its perfect for you .
The cam timing , yeah you need the specs of that grind number and a degree wheel .
I wonder how many cams with that lift number by Crane . I already knew of the XR276HR , which is dual pattern . But I wonder how many others share that lift , or if its custom shop .
