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 ...
Last month, you may recall we got a great performance boost for Jack Iafrate’s 351W engine with a set of Air Flow Research (AFR) aluminum cylinder heads. They were good for an impressive 40 hp right ...