Peer under the hood of the fast cars at the strip or the local burger joint and you'll see the AFR logo etched into more than a few cylinder heads. Racers demand proven performance, so it's no ...

So far, we only have about 1,600 bucks into our 406 short-block, including assembly and a bit of farmed-out labor (see July and Aug. '06). To complete the job, we started looking around for cylinder ...