JDM Mahle pistons. The stock ‘13-14 (and ‘11-12 I believe) are very stout and basically close to a Cobra Jet piston, which Mahle makes for Ford and is the basis for the JDM piston.
I’m going to keep my 1200hp JDM shortblock at this level, as I’m sure they’d tell me I’m already at the limit
Looking forward to the added fuel and fine tuning.
I’d really like to see what 19-20 degrees at 4000rpm does to the torque curve vs the 15 degrees above. And then 22-23 degrees above 5500rpm for power.