Does this prove David Vizard's 128 lsa formula ?

318 Dyno Pull



Here is a close to stock (sort of) 318 Magnum with a fresh top end and something like a 340 cam grind.

.274 on 114 lobe centers.

View attachment 1716216156

253 Wheel Horse Power

Add 75 HP for driveline loss.

253 + 75 =
"328 HP" at crankshaft

They are running 600 cfm Edelbrock.

View attachment 1716216157

Pretty darn good for a sort of stock 318 Magnum with a fresh top end.

Running a 114 cam, at 4765 rpm.


☆☆☆☆☆

With more lift and exhaust duration Richard Holdener got 350 hp out of a 5.9l magnum.