Easy installation (with no head work required) with a big boost in HP and torque over the entire RPM range Similar to stock cams but timing advanced for more torque and HP at low and middle RPM speeds Long duration cams for engines with higher compression ratios and low restriction exhausts Big boost in HP and torque at middle and upper RPM speeds Made in the U.S.A.. CAMS PL420 VIC 98-01 V-TW