So after replacing head gasket and timing belt and all that good stuff. I decided to put a header on while I was at it since the catifold was visually clogged anyway. So I deleted all the egr lines and just blocked them off at the air cleaner. I'm running about 9 degrees btdc timing. So it doesn't do it the whole time while driving but it will load up it will buck and carry on and my fuel mileage is completely gone. I mean I went from like 25-30 to 10-15 at best. I used original carb. I actually left all the vacuum lines on the carb I just layed it over upside down ish or on its side. Any help in any direction on what to do or what. Anyone else ever have this issue? Can you run a stock carb with the headers? Do I need to just go to a Weber and will that fix my headache?? Any help you guys would be awesome.