being a street / strip car 5000 to 5500 will be less streetable. JMO
4500 to 5000 will wake up the car and shoulden have to run the motor over 6500 rpm
SSYM; don't get rid of the 3500 if you do one of thoses power tours or something you may want to put it back in.
A few years of track racing can really make a nice car ugly. Just look at mine