Gen 3 Hemi Swap time!!!

also hp efi will do everything you want and is price comparable to the efisource plug n play stuff for gen3 hemis.
Thank You. I learned as much as I could in a very short amount of time. I also noticed that the truck "Big Mouth" heads are better than the apaches for boost. I also know that Mopar is now selling the 6.2 short block. Also EFI Source was kind enough to assist in the build, so I will be getting a deal on their MegaSquirt Gold box.

The issue I am having is understanding what really limits the Gen 3 Hemi from making the power an LS(6) can. If you stroked a 6.1 to 426, which is the base LS6, why can't you per say, make the same NA power they can? Is it head flow? I called HHP and Modern Muscle and they say 500 Wheel is max on 91 octane, but I have a friend that runs 580-600 wheel on 91 in her LS6. This raised compression, ported heads, cam and the MSD intake. Amazing stuff really