Air check valve question

[hh65flyer]

After the smog pump, there's the air check valve. One line goes to the back of the cylinder head and the other down below the car. I assume that went to the catlytic converters or something. My car has no cats but does have long tube headers, etc. Currently the line heading down below the car is in pretty bad shape and just venting to the atmosphere (making a lot of puffing noises). Should this line be capped or left to breath?

Sorry, this is probably easy. I tried to search for the answer.

Thanks!

 

[HISSIN50]

so you have no cats but run the smog pump?
i would imagine that if you cap it off, the pressure would build and fry the pump (remember the check valve is there to protect the pump in the event of a backfire).

my two cents. good luck.

 

[hh65flyer]

Thanks Hissin. I just got the car and that's the way it was set up. I've been told that it's difficult to cap the cylinder head and it can make the car run poorly. True? I've seen the smog pump delete kits, is this a hard install?

Thanks again for the reply.

 

[HISSIN50]

havent done it - sorry bud. i think guys use some end caps from a hardware store and cap the smog stuff off w/o much incident. i believe people have posted the size threads and type in here before.

but i just dont know the exact route to go. good luck.