These articles  may be of interest, regarding acidity and pores of zeolites.

http://nopr.niscair.res.in/bitstream/123456789/30826/1/IJCT%205(3)%20109-123.pdf

https://web.anl.gov/PCS/acsfuel/preprint%20archive/Files/41_1_NEW%20ORLEANS_03-96_0071.pdf

Hello Riaz,

the pore size and acidity of zeolites are not generally related. But there could be a relation, depending on zeolite framework type, modul and possible metal loading.

For most zeolites the acidity is dominated by the number of Brønsted sites, which is correlated to the number of Al-atoms (modul = Si/al-ratio). In addition zeolites could have Lewis acidic sites. This are especially internal Lewis sites and metal ions. A minor role are terminal silanol groups. 

Some general information about zeolite acidiyty could be found in literature. For example I have linked two nice papers.

Article On the nature of framework Br??nsted and Lewis acid sites in ZSM-5

Article ChemInform Abstract: The Acidity of Zeolites: Concepts, Meas...

Dear  Thomas Simons,

Thanks a lot for your affection and Response, Surely I will read These papers. 

Hello Riaz,

you´re welcome.

In addition:

Today I have found a very recent paper of J. Sauer, where an interesting correlation between structure and acidity is described. In this paper the acidity of bulk zeolite and two-dimensional zeolite is compared (in some way 2-D zeolite is a very extreme version of high porosity ;-) ).

Article Brønsted activity of two-dimensional zeolites compared to bu...

These articles  may be of interest, regarding acidity and pores of zeolites.

http://nopr.niscair.res.in/bitstream/123456789/30826/1/IJCT%205(3)%20109-123.pdf

https://web.anl.gov/PCS/acsfuel/preprint%20archive/Files/41_1_NEW%20ORLEANS_03-96_0071.pdf

Dear Riaz,

While I agree with Thomas Simmons that there is no general relation between acidity and pore size, I think that the Q addresses the fascinating appeal of zeolite chemistry where there  has been a continuing effort to tailor these two basic properties to control the activity and selectivity of zeolite catalysis or for that matter its application  for purification / separation processes

I am attaching a recent article on hierarchical zeolites that illustrates the effect of post synthetic treatment on both the pore size as well as its acidity.

 As stated earlier the acidity is linked to the Al atoms in the zeolite whereas the pore size depends on the type of crystal structure and trying to customize these two parameters for any specific application  is what all the fun is about. 

It is depended that you destroy bronsted and lewis acid sites or not, especially during synthesize hierarchical zeolites.

I attached three paper that show the relationship between together.

Article Preparation and characterization of Ni/mZSM-5 zeolite with a...

Article Synthesis and characterization of hierarchical ZSM-5 zeolite...

Article Facile one-pot tandem reductive amination of aldehydes from ...