TSP 220R Cam Specs: 220/220 .600/600 112 LSA The 220R camshafts use lobes that are designed to be both beehive & double valve spring friendly. This is an excellent performance camshaft with a smooth idle in 346cid and larger motors! We've had tons of customers select this camshaft when looking for a cam that drives almost stock and can be practically hidden with some exhaust systems! If you’re looking for a small stealth camshaft the 220R is a great option to consider. The idle is much more aggressive in 4.8/5.3 applications but still retains great street manners. This camshaft is a great choice for daily driven LSx Trucks wanting a lopey idle. It even works with stock torque converters. Engines best suited for: 4.8, 5.3, 5.7, 6.0 Desired Compression ratio for cam: 9.5:1+ Recommended Springs Required: PAC 1219 or TSP/PAC Dual .660 Valve Springs Aftermarket Stall Converter Required: No, will work with stock converter Upgraded Rear Gear Required: No Operating RPM Range: 1500-6500 Estimated Power Increase: 30-35+ HP Drivability: Great driveability, has great stock like manners with good lope at idle! Custom Tuning required. Options: Cam Only Cam, TSP .660 Dual Spring Kit, & TSP 7.400" 5/16" Chromoly Pushrods Ships Direct From Manufacturer