Howards designed this cam for OE Roller Applications with Stepped Nose (Carbureted), and is recommended for hot street/bracket racing use. It features great mid-range performance, and has a lopey idle.A 10.0:1+ compression ratio and a 3000+ stall speed torque converter are highly recommended. Howards Cams 181815-12 SBC Hydraulic Roller Camshaft Specs.
Basic RPM Range: 2400 to 6500. Valve springs can NOT be used.Howards Cams designed this Hydraulic Roller Camshaft for high performance on the street and drag strip. Howards Roller Cams - From mild to wild, they are the ultimate in performance!