Frankie Muniz returned to the NASCAR Xfinity Series on Saturday, where he planned to compete in the Pacific Office Automation 147 at Portland International Raceway. However, that goal was short-lived. During practice prior to qualifying for the race, where Muniz had to race his way into the show, his car blew an engine, prematurely ending his afternoon before it ever truly began. It’s a hard blow for Muniz to take, as he was exuberant at the prospect of racing in Portland, with some of the world’s best wheelmen. Afterwards in the garage area, Muniz spoke to Amanda Busick of FOX about the momen…