i have a 383 stroker and it was running perfectly then all of a sudden i lost horsepower and i thought it could do something with vacuum because my brake sucks and i put a new brake booster and master cylinder so it cant be that. so if some one give me there advice would be appreciated.

 

plz people help me

 

you should only need one thread to get a question out there.

where are you losing power? top end? down low? skipping/missing? smoke out the tailpipes? we need more information.

 

intake mann. seal leaking makeing huge vacuum leak? what about the o2 sensors? spark plugs good still or fouled out? coolant temp sensor good? WAY too many possibilities to try and guess. exactly how is it driving compared to before? and by brakes suck, do you mean no power assist and your pedal is very hard to push?

 

see my car has no ***** off the line unless u start 20mph

 

any other symptoms? check eng. light? anything?

 

no the engine check engine light hasnt came on.