Edelbrock Perf Plus Cam and Lifters Kit Buick V-6 231-252 Even FireEdelbrock part #5487 Performer Plus camshaft is designed for Buick 321 252 Even Fire V 6 applications. The camshaft will produce optimum torque from the low end to the mid range, Performer Plus camshafts match with Performer manifolds for vehicles operating from off idle to 5500 rpm. This Performer Plus is a smooth idling cam for daily drivers, trucks, vans, RVs and 4x4s. You can expect a major improvement in throttle response and torque. All