REMARKS :
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These engines have VANOS system on intake camshaft. Valve lift and timing data are illustrated on a virtual centerline of 110° (with corresponding virtual lift at TDC). The VANOS system changes the centerline and therefore the timing data and lift on TDC!!!
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supplied with adjustable gear set on steel lightweight billets
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ONLY for dirt track applications and pro street use with adjustable engine management or carburettors