Ford Performance M-6250-F303 Nokka-akseli

The legendary B303 cam developed by Ford Performance for the 5.0L Fox-body Mustang. This cam provides a noticeable power improvement and lumpy idle while maintaining good driveability with a manual transmission. Works well with carburetors or mass air fuel injection. Fits 1985 and later 302 roller cam blocks. Will also fit 1963-1984 non-roller cam 289-302 blocks when used with aftermarket tie-bar hydraulic roller lifters. Will also fit 1994-1997 351W blocks with factory roller cam. Will also fit 1969-1993 non-roller cam 351W blocks when used with aftermarket tie-bar hydraulic roller lifters. Requires upgraded valve springs. Valve spring requirements: 120 lbs valve seat pressure minimum 295 lbs open. On EFI engines, performance camshafts work only with mass air induction systems. Will not work with Explorer EEC-V EFI or speed density EFI systems. Also fits 1994-97 351W with factory roller cam when used with mass air EFI. Higher stall torque converter recommended for automatic transmission