cam question

hi, the reason I give for using the XE262H is, when you put long duration cams in low compression motors, you will loose cylinder pressure, which will in turn loose torque,= lose of power!!! the 268 will have plenty of "rump".
I just went through this with a guys 73- 340. he had the mighty mopar 509 cam in it. it couldn't spin a tire on wet pavement.his motor builder told him, this was the cam to use!!!! we replaced it with a EX262H. it now will spin the tires, it has a lot better power, and will pull 6000 RPM.