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Both come with 100% CNC ported 65cc or 75cc combustion chambers and 80cc exhaust ports with a 3/4" thick head deck (ideal for nitrous or blower applications)
AU2160-09000
The special valvetrain in the 1970 340 T/A is not compatible with these heads
AF200-03-6MBLK
2016 BMW 118i 1
Double Hi-Speed Tee Fitting EN7001CC Wash / Wax & Polish Both come with 100% CNCDouble Hi Speed Tee Fitting 8AN Inlet & Outlet With Dual Inline 8AN On One Side EN7001CC 7001CC A high speed bypass is used to return extra fuel to the tank at high RPM for more horsepower and higher terminal speed. To add a high speed to an engine you need a high speed tee, check valve, pill holder and bypass pill.