Engine News EQ Cylinder Heads Wild West Northern Tour Advertisement ByEngine Builder on May 6, 2009 Ricky Alvarado wins EQ Cylinder Heads Wild West Northern Tour (IMCA) at Aztec Speedway on April 24.Click Here to Read MoreAdvertisement Advertisement In this article:IMCA Engine News: RM Sotheby’s Announces Largest Single Collection of Important Open-Wheel Race Cars Ever Offered at Auction Engine News: IMG Acquires Majority Stake in Barrett-Jackson Engine News: The Royal Automobile Club presents Segrave Trophy to Pikes Peak winner Robin Shute Engine News: PRI Trade Show to be Honored as Top 100 Trade Show of 2021 Advertisement