WHY would you want a 108* centerline, unless you are trying to spin the engine to 10,000 rpms? These motors make great power on 112-114*, with a nice torque curve.
It appears to me you are speaking in carbuerated, SBC terms, which have little to no bearing on the LSX world. .....Not trying to offend you here......
And also, you must not be familiar with the LSX motors because there is no way in high heaven you could fit a 25x /25x duration cam in an LSX with milled heads, without pistons with cast-in valve reliefs.
and just because your "bruuuuutal" vette runs whatever, those cams are EXTREMELY mild (Duration@.050: 205* intake, 219* exhaust , Lift: 0.551 intake, 0.549 exhaust , LSA: 117.4*) So that being said, please don't confuse this guy more without researching your claims.