1971 Superbee 383 HP Cam Specs

[Great White]

Can anyone tell me what the cam specs are for a 71 383 HP motor? I'm trying to determine if the motor in my 71 Bee has the stock cam in it.
The car has an automatic transmission. Cylinder bores are not bored oversize so I'm thinking the motor has not been modified.
I measured the lift directly off of the lifters with an indicator, multiplied by 1.5 and came up with .457 Exhaust and .423 Intake. That sounds sketchy to me but??
I don't plan on changing the cam because the car runs good as is.

 

[toolmanmike]

This is as close as I can come.

Regarding the Road Runner '383' Camshaft.

It is the same Camshaft as the 440 HP Camshaft which came out in 1967.

Lift ............ .450"/.458"
Duration ..... 268*/284*
Overlap ....... 46*
LSA ............ 115*