Quote:
Originally Posted by bubba428
right but...the 3400 heads folw much better and i think...don't quot me...they have bigger valves...
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2000+ 3100 heads and intake are identical to the 3400 stuff (besides the obvious cosmetic differences in the upper intake).
I did lots of reading on the topic a few years ago when I was thinking about doing the top end swap on my '91 Lumina 3.1.
- Justin