I swapped the cam in my car. I went with a comp cam cc502. The car feels great at rpm all rpm ranges, but really wakes up between 3000 and 6000 rpm. I also installed combination motorsports valve springs and comp pro magnum 1.6 rockers. This gave me a total lift of 526/536. I still have the stock iron heads but I had them cleaned and got the valves cut. The first time i ever ran a car at the a track was in January. I ran a 14.9 then a 14.8 then a 14.7.
I went from 14.9 to 14.7 just by emptying the trunk and I had a bad O2 sensor bung that was leaking and ultimately fell off during my last run.

other toys in car
- afterburner headers
- flowmaster mufflers w/ cat delete and hpipe
- Eaton 400lb posi w/aam 3.73's
- At the time of run sewer pipe intake w/swiss cheesed air box
- now have clear image's SSRI
- stock stall converter
hope this helps...
post if you have any questions...