First off, welcome to the forum. You are now connected to the most elaborate, comprehensive and helpful use of the internet ever! The people here are top notch and you are in good company!
I am glad that you are rebuilding a 326. They usually get the "Cheaper to build a 400" mantra and people usually scrap them.
That said, the 326 is an awesome mill. But over camming is an issue. While they rev great, the combination of parts usually do not allow the use of higher HP parts. The 094 heads are the lower compression heads of 66. They will live on pump gas better than the 095 heads that will bump up compression to over 10:1.
Here is a good link to see the config of the 094 heads. They have relatively small valves compared to the rest of the Pontiac engines, because the bore is small on a 326 and if they were bigger, you would have issue with the valves hitting the block.
https://sites.google.com/site/ksmsin...ontiac-head-id
The first cam that GTOFREEK recommended will ROCK in a 326!! If this is your first Pontiac, the 326 is NOT a 327 Chevy. 207/213
SOUNDS small, but in a Yak will explode with torque off of the line! But will run out of breath at 4500 or so. Which is fine as 99% of cars live in the 2-3K RPM range.
I currently have a stock rebuilt 1966 326 with 094 heads that had a 2BBL. It was a replacement engine from Sears I think in the 80's by a previous owner of my 1967 Tempest Wagon. All I did was swap to a 4bbl intake and slap on a Holley 570 CFM carb. I did make it has a 4 speed, and it came with 2.56 rear gears. Car runs great! I Just took it on a 350 mile cruise Friday and Saturday. Kept up with traffic at 70-75 mph and got close to 18-20MPG even with my foot into it.
P.S. Buy the correct heads gaskets. DO NOT BUY FEL-PRO 8518!!!!!!! They will not fit! They look like they do, but you will have too much quench around the bore and will blow the head gasket..