Erson cam

I ran a Sig Erson cam similar to that back in the day in my '69 Super Bee. It was a dead stock 440 HP engine other than the cam.
It sounded good but for some reason, it was about 3 tenths slower in the 1/4 mile than the old Direct Connection ''street hemi grind'' purple shaft cam that it replaced.
I put a Holley 750 double pumper carb on it and headers after that and only gained about 2 tenths back.
It pulled pretty hard from about 3000 to 6000 rpm, and it was a 4 speed with a 3:54 Dana with L-60-15s on the rear.
In my opinion, if you want to go old school, get a Mopar Performance purple shaft cam. They DO work.
Just my 2 cents.
Tom.