ISKY id cam help

hi,

i've got an old isky roller cam & am unable to find information on it.

it is a roller for a sbc...has a 2 gear drive (reverse rotation). on the end of the cam it says "Magnum X73C RR 545". if anyone has an old isky catalog, i'd love some help with the lift, duration, valve timing, etc so i can degree it in. thank you in advance...

 

201520 RR-520 2400-6200 .525 .020 280° 240° 108°​

ROLLER ​

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.525 .020 280° 240°
201575 RR-575 2600-6500 .576 .028 284° 244° 108°​

ROLLER .576 .028 284° 244°

Oval track cams, possibly super mod or boat

You are going to have to flip your rear end to run this cam......

 

You don't want flip the rearend. This is a reverse rotation cam, not a reverse rotation engine. Just make sure you use an aftermarket distributor with ball bearings since the reversing of the cam won't lube the dist. shaft properly.