the guy i was considering buying a ported IM from now only stocks ported blox ims since the jdm oem cost a lot more

are these two manifolds exactly the same as in same flow before and after a port job???

 

What's wrong with your stock im?
If you need to choose, get the Blox.

 

im already using a stock jdm p73 IM but im looking into buying a IB ported one.

the problem is, he only has ported blox manifolds for 575. he can do a jdm im if i send him one for 410 but itll end up costing me more by doing this.

my question is, is the blox or jdm itr manifold better than the other in stock and ported form???

 

I know I don't have a P73 IM but I did have my P72 ported.
You may want to take a look at DPR Racing.
http://www.dprracing.com/
I was very happy with the work and cost seemed reasonable. Plus the 7-6hp I gained through my mid range was great.