I think the cam your talking about is a Xtreme energy XE256H-10 Dur. .050 212-218 Lift .447.454 110 degree lobe. This a little better than your stock cam. I went one cam better with a 218/224 Dur. 050 lift .462-.469 which gives me a pretty good chop at idle. Your will also have to change your lifters, springs, etc. on your heads so get the complete kit from Comp. What carbs are you running? With mine bored out .060 over and that cam with headers I couldn't run anything over 500 cfm and even then when the other one kicks in your getting to much fuel for that engine. Your better off running a single 600 cfm carb.