Greetings Dino & all; Ya didn't say how many cubes you have or your heads (flow), so It's hard to give an OPinion. But with that duration it won't be the sweetest idler. Obviously the OE converter won't work, if you're an auto trans. And Maybe I should mention valve spring & lifter roller life! Except 10-12,000 miles for the valve springs. You'll be twisting this to 6500 with ease, the springs will give their life for your pleasure. Also keep in mind that you will be loading the lifter roller beyond the street oils capably to carry to the load. After you have opened the engine, use a break in oil, to help rollers live, syn is too slippery & won't carry the tiny grit away + you will get extra ZDDP (zinc). If noting more to cleanse the engine for any tiny grit that can start roller damage that won't show up for miles down the road. Example my good buddy has an Ls 6 (yes a ZO6) that spent a month away from home being modified by a performance house LP & they put in a cam with a smitch more duration & lift, recommending Mobil 1: 15-50. This took place back in 2004 when said oil had more ZDDP. Well that set up lasted 22,000 miles, roller & lobe damage & junk springs. It seems Mobil 1: 15 -50 is TOo heavy for the Ls oiling system? And not enough ZDDP to carry the increased loads! So after the break in oil try Driven LS30 by Joe Gibbs or some other Hi zinc hot rod oil. Some guys are running Shell Rotilla syn 10-30, it's cheep, But It isn't blended for gasoline engines & the shear doesn't like RPM, it tends to foam. And double check your valve train geometry (push rod length). Good luck & have Fun, I hope I helped, Ol'e Bob