In the past I have been able to unhook my crappy stock exhuast from the y-pipe. I have no cat so this is no problem, I just drilled a hole where the slip fit of the two pipes overlap(so there is no leaking when hooked back up for the street) and when I pull the system off of the y-pipe I can mount the disconnected pipe to the side of the y-pipe to hold it up from the ground. Now I have open exhaust from after the y-pipe. Do you think this helps me, or do you think I should leave it hooked up? The problem is, the rest of the system on back is still the stock one pipe to two split, that Chevy so terribly rigged.

 

i would leave it hooked up as long as you dont have a muffler. you need some back pressure.

 

I would try it both ways and see which works better.

The amount of backpressure "needed" for a properly tuned carb'd engine is "nil".

 

yeah i was planning on trying it both ways. Looks like I ran outa time with winter here and all, my local track, Cecil County, shut down for the winter a couple weeks back. Do you think that a 3.5 inch Mufflex system followed by a Spintech would be my best bet? I plan on getting more power out of it by this spring, so I think exhuast should definately be first before I do anything more to it. I think its really being held back by that little pansy pipe splitting deal. Also, for the winter adding some real headers, I guess hedmans, mostly cuz of the price.