Yes the create engine is a little bit of a mismatched combo. If you look at the dyno results works quite well. It's actually makes 2 hp per cfm not too many engines accomplish that especially with 9:1 CR.
But a stock long block that makes 400 plus horsepower at 5400 rpm with just a cam 4bbl and headers is amazing. Mine works quite well even being very under geared 2.96. Once I get a set of 3.91-4.10 is gonna wake this beast up.
Personally if I was to put this engine together I'd of went with a smaller cam and air gap.