Quote:
Originally Posted by Formulajones
The original intakes are also sketchy on port alignment. That's why the aftermarket intakes are, because from what I was told, they used an original for the mold, and that's how the ports were. That was even discussed on here years ago.
Even some of the iron intakes have wonky port alignment. Steve C sent me a picture the other day of his original 70 RA III iron intake and the port alignment on that was quite a bit off on a few.
I've purchased the repo aluminum RAIV/HO intake a few years ago, and although port alignment was very slightly skewed, it only took a few minutes with the grinder to clean it up and has worked perfectly fine for me for several years now.
In fact, I've done back to back testing with it compared to my original 70 RA III iron intake and they perform identical with no difference what so ever in performance.
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That is not what I've read or heard about the repro RAIV/HO intakes as people have posted here. Granted these repros will work fine but nothing is better than the original part. The repros are popular because they are readily available and relatively cheap. That said, I would never put a repro on an original RAIV car or HO. I would look for an original. manifold.