I just purchased a 1995 Mustang GT. I should say I saved it from someone who did not know what the @^&#!!! he was doing. 
According to the previous owner it had an aftermarket cam installed. I am not 100% convinced of this. The stang has a real loppy idle and sounds pretty mean. It has gobs of low end power but not a lot of top end. That just seems really odd to me. In my experience with working these cars it appears from listening to it that timing was manually changed. Also, with as big as this cam appears to be, why am I lacking top end power?
Does anyone have any ideas where to start?
Thank you

According to the previous owner it had an aftermarket cam installed. I am not 100% convinced of this. The stang has a real loppy idle and sounds pretty mean. It has gobs of low end power but not a lot of top end. That just seems really odd to me. In my experience with working these cars it appears from listening to it that timing was manually changed. Also, with as big as this cam appears to be, why am I lacking top end power?
Does anyone have any ideas where to start?
Thank you

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