X-heads vs J-heads: what's the difference??

Watch that mouth, chebbie boy. lol


Or if someone was putting a car back to original and wanted a correct piece.

Some of the data is hysterical. A T/A head flows more cfm than a J head with the same valve... that's a riot. It's the same port! Somehow it magically flows a significantly greater amount of air? If only it was so easy.

None of them work better than the other in stock form when outfitted in similar fashion. You just won't see it. One has a nicer intake and has hampered with a garbage exh port, another is more balanced. That's what was stated earlier in this 4 page diarrhea-fest.

These are the best posts in the thread:


What a space saver. More like Moparts every day around here.

I have to go out and work on my 78 Nova.