Thumper Cam
02-21-2007, 07:31 PM
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Thumper Cam 
Anyone ever heard of a thumper cam from Crane? What does it do? Or anyone know of a mild cam upgrade that would work with stock heads? 
02-22-2007, 12:28 PM
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i had the crane 227 it was pretty cool even though its real tiny. puts up some impressive 1/4 mile times for it size. i have since gone bigger and have not taken the car to the track yet.
