I forgot to say, I got rid of the EGR valve, my jeep came with no catalic conv, and the PCV valve was also taken off, instaed I have the rocker cover breather and a second breather from the hose that used to go into the PCV valve, positioned next to the one at the valve cover(same height). The PCV valve opening is being plugged with a pipe plug. The engine is smoother, cooler(no more hot scrappy air into intake), and the carburetor is always clean, no more mess up from the engine vents. The engine breathes and vents excelent, efficiently. The 6 into 2 into Y pipe headers sounds powerfull, I never though it could sound so cool. It is better a sound than the V8's, which sound like a fishermans' boat, the 6 inline with this headers sound class, power, means business.
6 in line is the way to go.
