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Old 02-22-2021, 08:55 PM   #58
Scooby Specialist
Member#: 260314
Join Date: Oct 2010
Chapter/Region: NESIC
Location: S central CT, New England
2007 STI
silver gray metallic


Originally Posted by Kremer930 View Post
Does anyone know what a dual avcs 257 head flows with plus 1 valves and 272 Kelford cams vs IAG stage 5 vs the Crest CNC cast heads? Thanks
W25 heads: I ported and unshrouded the heads myself. They were CC'd and bench flowed after Supertech +1mm valves were installed. Assembly work and testing was done by Heads Up Machine in NY.
Flow average of 284/219 @ .445" lift
Kelford 220-C cams (272/268 for DAVCS).
My engine made 470 HP on 24.0 PSI, running Premium gas with Torco additive.
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