Need more power outta 2.3

[Mikel89us]

The 2.5 and 2.3 cast manifolds are a great design. They are even flow, and as stated, with a little bit of grinder work they are a good performance manifold. The next best thing to a long tube header.

 

[Exenos]

Take a look here http://www.hotrodhigh.ca/2300.html I'm not too sure on how reputable it is but lots of info there.