Duration specs on stock 302HO camshaft?

[Jrock909]

What is total duration of the 302HO camshaft

 

[85_SS_302_Coupe]

All i have is for an '85, but i'm sure all the others are very similar.

85 Cam Specs:
Intake / Exhaust
Opening 17 BTDC / 67 BBDC
Closing 69 ABDC / 19 ATDC
Duration 266 / 266

Overlap 36 degrees
Lobe/valve lift 278/444 in.
Part # E5ZE-6250-AA

 

[Maryland Stang]

Before 8-10-88 is 266 intake and exhaust. After 8-10-88 is 276 intake and 266 exhaust.

 

[kpack5982]

http://forums.stangnet.com/showthread.php?t=682669

 

[tmoss]

The best way to judge duration is at .050" lift. Stock cams vary considerably in duration at .050" lift - the general envelope is 204~212 degrees. You won't know what you have until you actually measure one. Factory Stock used to limit cams to actual factory cams, so some suppliers have cam doctored (measured) a bunch of them and supplied the above envelope. F/S now allows ground cams to factory stock specs.