no my friends did not tell me this... a tech guy from jegs... hah yeah i know i know but he did sound very knowledgeable. i couldnt find a reading when i still had all of the stock internals inside of it, so i know that it isnt from the cam or anything like that, and i know that this guy had some truth to him because he told me that an HEI would be a problem on the 283 before i told him that i couldnt find a reading .. so he wasnt feeding me bull ... so i dunno any other suggestions??