Categories Customer Rides Photos Sponsored Cars Videos Latest Enthalpy creation to hit the streets. Post author By Jason Post date February 13, 2013 Sean making almost 400hp on his new setup! 2871 .64 T2 flange on a stock manifold with external 38 mm I welded on. Built 9:1 motor by me with stock cams and plenum. Will do 410-420 with race gas and 2 more psi. ← Submit your pictures or video!! → Sundayslide!!