clarkp81

The camshaft that I have in my 289 says that it is built for the street but I don't know if it will work well with a 5.0 EFI system. The specks are:
Cam Style: Hydraulic flat tappet
Basic Operating RPM Range: 2,000-4,500
Intake Duration at 050 inch Lift: 218
Exhaust Duration at 050 inch Lift: 228
Advertised Intake Duration: 276
Advertised Exhaust Duration: 286
Advertised Duration: 276 int./286 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.471 in. Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.471 in. Valve Lift with Factory Rocker Arm Ratio: 0.471 int./0.471 exh. lift Lobe Separation (degrees): 114

Does anyone know if I will need to replace my cam, or if this will work fine with a late model EFI setup?

67mustang302

It's not a huge cam, and with a 114 LSA it should probably work fine. Still though, factory computers can be persnickity, but either way it'd need to be tuned for best performance. There's a lot of options out there to tune them.