I ain't sure I go along with that. Think of these differences. First, he's got 20 more cubes. Next, he's got a WAY more modern camshaft grind. 110 LSA VS I forget....either 115 or 116, so there's some cylinder pressure right there to help make up for the lower static compression. Plus, he's runnin headers. I think with a good hot ignition curve with initial 16-20 and total limited to 34 or so and he's all over @crackedback's estimate. Either way, it's gonna be a dang hoot to drive. Old school build and I love it.