When HPP left Racekrafters' shop the last time, The Mule performed quite admirably with the out-of-the-box Edelbrock cylinder heads installed. It produced 502.8 hp and 570.7 lb-ft of torque. As always ...

If one thing truly leads to another, you can say the head and exhaust swap we performed on the Balls of Fury (Charlie and Chad Pirchio's '64 Sport Fury) in the August '13 issue (Two Bolt-ons Bring 81 ...

In the first installment working with our 402 big-block (9.5:1 compression), we swapped out our factory oval port, cast iron heads for a set of alloy heads from Trick Flow Specialties. Without ...

It's been all the talk on internet forums, club meeting hangouts, and in enthusiast garages across the nation—the loss of zinc and other protective "barrier" chemicals in modern oil damaging ...