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NoDOHC · 07-21-2009, 10:29 PM

I have heard that there is good success to be had from cleaning the primary ports up and porting the secondarys considerably larger. If you leave the 6-PI working and fill a radius into the sleeve you can have the high end and low end both. I have never done much to a 6 port engine personally.

07-21-2009, 10:29 PM	#4
NoDOHC The quest for more torque Join Date: Sep 2008 Location: Sheboygan, Wisconsin Posts: 855 Rep Power: 17	I have heard that there is good success to be had from cleaning the primary ports up and porting the secondarys considerably larger. If you leave the 6-PI working and fill a radius into the sleeve you can have the high end and low end both. I have never done much to a 6 port engine personally. __________________ 1986 GXL ('87 4-port NA - Haltech E8, LS2 Coils. Defined Autoworks Headers, Dual 2.5" Exhaust (Dual Superflow, dBX mufflers) 1991 Coupe (KYB AGX Shocks, Eibach lowering springs, RB exhaust, Stock and Automatic)