... such as half bridge/full bridge/peripheral ported engines.

What if anything did you do for the power brakes? Add a vacuum can, left it alone, ...?

 

My dads v-8 had a very radical cam, and produced little vacuum. He had the same problems with the brakes, he would have to throw in neutral and give it gas to get the brakes to work. A can "helped" but didnt solve the problem the way he wanted. Ive heard of electronic vacuum pumps, may want to look into those.

 

Peejay :I`am not having trouble with vacuum at all?

They work fine,even @ idle (which is 1900 rpms) for my car

 

Sounds the good.

I didn't notice any problems with my street port (I never did find out what my idle vacuum was), but obviously the GOOD ports have even less manifold vacuum and I'm worried about that, ever since driving a few customers cars that had basically no power brakes and they had relatively good vacuum (8-10") compared to what I'm considering...

 

Ok,thats strange..
I have driven with ,in a MFR PP engined 323 before,and there wasnt any problems.did the people retain the stock vacuum point for the booster ?

 

engine brake a lot, it builds vaccum