No catch can. But a valid note. When I did the SC and tune (3800miles) we thoroughly inspected the OE intake and TB. There was NO oil in it. Not even a film. There is still none today (6 months and 3k later).
I am running a 160 Tstat tho and my fans are re-programmed. These engines change clearances a bunch when heated above 180. A lot of respected tuners have tested and shown higher blow-by/consumption at the higher temps...
As a side note I am also running a 160 on my LS2 Silverado with no oil consumption or blow-by in the intake...
This will certainly start a flame war so stand back!
