Header/ exhaust help!

[1993-Sierra-Z71]

So I decided I'm gonna do long tubes, have it chipped, x pipe, new high flow magnaflow cat.

Also, Since your truck is a '96 with OBD2, a plug in tuner that has perameters for your truck would work fine. Plus you get a few settings to play with, Such as Tow, Economy, Performance on Low octane, and Performance on Higher octane.

 

[Bearcat91]

i need help! i did my headers saturday and since it has been running rough...im thinking we got the plug wires out of order. whats the order around the dist and on the block so i can trace the wires?