For a comparision to your 318 magnum engine in your truck, we have a old version 318 with a standard bore and a .501 comp cams cam and 3675 set of heads with stock valves and a M-1 intake and a set of hedders on pump gas and the car weighs in at 3330 lbs. and just last week even being out of tune ran 7.89 @ 88 mph in the 1/8 which this puts the old style 318 engine in the low 12's or upper 11's.
