The 270H Magnum Cam is a great cam for high performance driving in Street Machines. The 270H has a rough idle in small blocks and a noticeable idle in big blocks. This is the largest cam you can use with a stock torque converter. The 270H will not affect power accessories, but should be used with headers and a 4 bbl. carburetor. This is the perfect cam for cruising. Power Range 1,800-6,000.
The 280H Magnum Cam is best for the more serious street machines. This cam has a definite rough idle and will sometimes affect power accessories. The 280H can be driven extensively on the street, then raced on the intake manifolds and headers. Power Range 2,000-6,000.
The 292H Magnum Cam is for the serious "Street/Strip" type car. An aftermarket torque converter should be used as ell as headers, intake, and increased compression. The 292H has a radical rough idle. Power Range 2,300-6,500.
The 270S Solid Magnum Cam is the perfect cam for small to medium cubic inch engines. The 270S delivers good low speed torque with a moderated noticeable idle. This cam is an excellent alternative to the 268H. Power Range 1,500-5,500.
The 282S Solid Magnum Cam is great for street machines because it can be driven daily and raced on the weekends. This cam features a broad power curve and torque range with a mild rough idle. Power Range 2,000-6,000.