Hi there im new here ,i want to buythe kent cam CVH33K for my ford fiesta xr2i 1991 efi , approximately 20bhp increase they say

Applications Competition Power Band 2500 - 7000 Cam Lift(mm) 7.36mm Inlet/7.24mm Exhaust Valve Lift(mm) 12.14mm Inlet/11.63mm Exhaust Duration 290 Deg Inlet/ 285 Deg Exhaust Timing 36/74 72/33
now the question is :''have someone put this cam on his car?'' i know if i put this cam the idle will be irregular .