I know Jake's is a vvti but I don't really see that as a big power adder and not the spool lifesaver people profess it to be either.
If you compare Terry's and Wez's dyno Wez has more low end torque and that's even with his non dbb turbo, cast mani, 3"DP, non vvti, stock cams.
I suspect the forged pistons are a plus for sure. Given Jake's is running more boost, larger turbine housing and a non stock exhaust cam I'd expect hime to make more power. I got the wrong impression from the cooments (I thought your specs were the same but some how Jake's was making more power).
Anyway - best of luck with it Jake, it sounds like you shafted a plug at high boost. LEt us know if/when you get some RR numbers!