Hey are any of yall running a 6A box on an 87 trans am/gta? I have an 87 gta with one and when I get on it the tach jumps around after 3000 rpms. I talked to the guys at msd and they said that there is a capcitor(sp) or a filter that is on the wire that goes from the tach to the coil that you just take out and splice the wires back together. Well I looked and looked but I can't find it on that wire. I need to know where it is or if there is anything else I can do to fix it. If anyone has had this problem and knows how to correct it that would be great so i don't have to guess where to shift!

Thanks

 

No One?!?

 

No problems on my 6A. My Z runs great with it