somethin to play with

[71cheyennezz4]

For any engine enthusiast out there like me you can sit here and play with this thing all day

http://www.gmperformanceparts.com/Pa...l.jsp?engine=0

click on go to the zz4 build and dyno, select your parts, watch it run on a virtual dyno and give you real life numbers as well as some sweet sound effects, you start from the block, select what heads you want, what cam, rockers, carb and then run it on the dyno, shows you stock hp numbers and then your numbers, you can also do this with a few other engines on the website, search around for them.