In their September issue, the editorial staff at Car Craft took the advice of renowned engine builder Kenny Duttweiler to treat a properly sized, high-efficiency turbo engine like a naturally aspirated one. To do so, the team set up experiments in which they installed three different COMP Cams®
single-pattern hydraulic roller camshafts on a 420c.i. small block stroker with a pair of 76mm turbos. The engine also features COMP® short travel lifters
, tool steel retainers
and a three-piece billet aluminum timing cover
. You can read the results of the experiments by clicking on the link below. We also encourage you to pick up the September 2012 issue of Car Craft.