If you LA heads are stock, you'll see a gain.
IDK. Honestly, if I gave my speech on this it would derail this thread. But let me say this, my original plan, 3 years ago, was to put the 318 magnum in my '74. These heads were going to be direct replacement and I was only to have 300 into them. These were NEVER bought with intentions of going on a LA. Things change, you know that.