Neither. The oval monoblade is worth a bit, IF you can tune for it and it's hooked to a CJ. It's a waste on a stock mani, as is the twin 65, though a little less so. The twin is your only option if you still have a stock mani. There isn't alot of power here, even with FI.
2014 Premium GT, SGM, Brembo, Auto, Tech, Comfort, etc. GT500s, Steeda UCA, VMP auto tune, 100 shot on BBR tune, best et: 11.38 at 120.85
2012 GT, Candy Red, Brembo, 3.73, Tech, Comfort, etc. Procal tune, Roush upper, UMI LCAs, Steeda red bracket, GT500s, 28X10X16 Hoosier slicks, best et: 11.91 at 115.23 RIP