Does anyone else have a decrease in breaking after the gm847 installation orany cam similar in size?

If so what can i do to correct this and what is involved in an ls1 brake upgrade?

Thanks for your input.

 

Never had a problem like that with mine.

 

had that problem with my le2 cam install, tried a vacume canister with no luck. put in an electric break pump from ssbc and havent had any problems since, it not 100% but its alot better then it was off the manifold with the le2

 

My cam is similiar to an 847. I run a vacuum canister and don't seem to have a problem.

 

Only at idle speeds. On the highway they work fine.

 

Ive always wanted a little more braking out of my LT1 and with the cam i think i need it. Do you think the Ls1 brake upgrade would be sufficient?