So, I've rebuild my DOHC ZC after a brutal disaster (that I'd rather not get into) but now I'm facing a much more grave issue. i cant get enough freakin air into the engine. the stock obd0 intake just doesn't cut it. not to mention the 55mm throttle body. I have various other TBs to use, but they don't bolt up. through a lot of research I've found that an intake manifold stamped P29-hr1 will bolt directly to the head (without the lame intake adapter) and uses a standard d-b-h-f series TB flange. With all this said.... WHERE CAN I FIND ONE??? p29 says to me 88-89 integra, but i looked it up and its not right. this is driving me nuts!! any help would be freakin awesome.

 

Its a obd1 zc intake manifold. Check http://www.thezcr.com they have some on there from time to time. I make 430whp on the obd0 intake manifold but, i'm also looking for a obd1 for the bigger throttle body.