One thing is for certain a thumper isnt going to wake up your BBC they were created for sound . Thats not what moves a vehicle Torque does. Next why would you want to buy an Xe series cam they have hasd lobe wear problems for decades and they still do. everything in engine building has to do with the correct combination of parts to achieve the desired results go faster . What you have to figure out your compression ratio static and dynamic and then buy a cam that will work for you . If its some of that cackle and thump thump sound buy a cam cut on a 108 lobe center witrh a short duration . Call isky up tell them eactly what you have and be honest they will tell you what to use and you will move fast and have your sound but the right way. Buying something just for the sound just wastes gasoline and makes no power for the fuel burned. You can do what you want but the advice i gave you is real world and solid . Remember i am not trying to sell you something or telling you what you want to hear so you buy something . Inform yourself ask around you will find out i gave you good advice from an old time engine builder. AlexI want to get a thumpr cam to wake up my big block a little bit. Yes I understand that this cam isn't as good as the XE series, but I really want that sound and anything is better than the original GM one. Look like I have 3 options? Motor is a 1993 454 that is stock besides a Performer 2-0 intake, 4011 800cfm carb and headers.
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