Hottie lumpy cams for hot street cars, street/strip cars, tough competion engine powered pro street cars and wild hot rods. These cams are grouped here becasue they require some finesse to tune and dial them in they are not for the novice tuner you have to work at it, they idle rough and they require alot of other engine improvements to make them work properly, like for example head work, high comp, big carbies, headers, high energy ignition, custom spark timing, low diff gears and more. Typically the cams in this section require you to sacrifice some or alot of driveability on the street, basically it all boils down to what you are prepared to put up with to make the horse power you want. The power band comes on strong and can be peaky, if you want to be spining the wheels in every gear and have a screamer engine then this selection is where you need to be looking.