I'd go with #2 based on lift specs. Unless you want to invest in some new rocker arms, the stock LS rockers don't work well with high lift cams....under 0.620 your good. If the motor is EFI, the 112 degree int/exh lobe separation is getting a little tight, hope you know a good tuner and if your running a stock LS3 intake....move the MAP sensor source to the rear of the intake plenum from its stock location. The stock LS3 MAP sensor location is too close to the throttle body and high overlap events are exaggerated by the throttle blade area. The LS3 also likes a bigger duration on the exhaust lobe.....#2!
|