I read this when it first came out and this is very similar to the 517 I first built about 15 years ago using the Chapman Stage VI 285 cnc heads and also after a few great long phone conversations with Mr Dulcich. I first spoke back when Moparts was collaborating on the Engine Masters that DRAM machined for us.

My motor is 11.2:1 4.375 x 4.300 in a 400 low deck and also has a 264/268 Bullet Hydraulic roller and I run a Larry Smith deep ported MP '337 for hood clearance. It's a fantastic combination and I'm sure the design of the TF270's were probably based on the Chapmans in some way or form.

335 CFM by only .400 lift is going to make big power in a BB Wedge, let alone 360+ @.600. Wish I had that dry sump, that's probably 35-40 hp and a broader torque curve.