just want no if i open the stuffer up will it increase the power thxs boys

when you say open the stuffer up what do you mean ?
there is a stuffer crank (polini blue style) or there is also a stuffer in the reeds

in the reeds sorry al

you may loose a little bottom & gain a little top end

what exactly is the stuffer?

The stuffers are also known as inserts. They aid downdraught by creating a narrower opening then expanding again as well as providing a directed flow into the crankcase.

Are there any power gains if i added a stuffer to my standard 911 rep reed block with polini blue reeds?

I have a BZM manafold with flow inserts(stuffer) on my engine and i found that it gave it more tourque down low and better throttle response