Actually the right thing to do is check the tune when you do the swap...yes?
And if you stick to just basic mods that favor the SC, yes, it might be a difference of a 1/0th or 3/10th, but do real gains with heads and cam(s) etc...not the same story...you'd probably be out twice the $ for the same hp...and the LS2 would do it easily, the Cobra would be a much bigger job.
12 sec '05 GTs with bolt-ons and a tune, yes, I've already mentioned that. I've seen '05-'06 GTO's get deep into the 12's with NO bolt-ons, just street legal DRs.
No contest with the Altima, I agree, as long as you go with 4cyl vs 6cyl, but not a 6 vs a 6. That's like making a SE Contour take on a CSVT.
Sells numbers mean nothing. Is that why I and others bought a CSVT, because it was a sales champ? And not the best step, imo, because they up the price and throw a supercharger on the small motor (which is the size of a 460cid) to get their hp and times equal to their rivals.
Yes, the 450hp Shelby
For $10k more than a GTO like mine? LOL! Many GTO owners are already going FI, via the Maggie (the Shelby will be FI?)...but the GTos are making around 600hp...at the wheels...for that extra $10k!!!
And the Camaro is coming out (hide and see). If the Mustangs aren't packing FI, they'll never come close to the bigger engines. FYI, word has it that the stock NA GTO will probably be packing that good ol' 450hp, w/o FI of course.
...and I do honestly wish everybody a happy and safe Christmas/Holiday