2000 Blazer, 4.3 L Vortec, 4X4, 4 Door, Part 1, Replace injection assemble with upgrade HD

2000 Chevy S -10 Blazer, 4.3 L Vortec, 4X4, 4 Door, 125,000 miles, disassembly only I will be removing the throttle body and talking about how to clean it, and modifications, and removing the upper intake/plenum, and talking about why some parts are so clean and other parts are so dirty, if you look down through the throttle body and see clean spots you have gas leak and need to fix it Replacing injection assemble with upgrade, Delphi # FJ10565, new style used on latter years Chevy Blazers & pickups, this change should give a noticeable increase in horsepower, because of the change in design, fuel pressure is built up at the poppets in the top of each cylinder and not at fuel injection assemble Thank you, Dennis Friedman