Well I just went to a couple of dealers and got some prices.
2001 Camaro SS: $40,970 CDN.  That with a 6 spd.
2001 Firbird: $41,965 CDN.  Also with a 6 spd.
2001 Mustang GT $31,615 CDN.  5 Spd.
That is around a $9,000 difference Canadian.
In US funds you're looking at:
Camaro: $26,200
Firebird: $26,870
Mustang: $20,200
And that is around a $6,000 difference.  You can do a lot with $6,000.  What's a blower worth?  How much power would that grab you?
AND if you do the $/HP calculations based on these numbers...
Camaro:$80.67/HP
Firbird:$82.64/HP
Mustang GT: $77.69/HP
So the Mustang has the best $/HP ratio of the cars.  I bet once you add a blower, you'd be even better!
These are not based on the "MRSP".  These are based on what 
I saw at the dealership. The same price you'd pay if you wanted once of these cars.  Go to a dealer and check it out.
This is similar to these phantom track ET's.  There's "what it should run" amd "what it does run".
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Driving: 1998 F-150
Far way in Edmonton==> 
 1995 Mustang GT
 
1995 Mustang GT