I am taking a shot at rebuilding my Rochester Quadreajet 4 brl manual choke on my 5.7 350 OMC engine. I ordered a float kit and rebuild kit to be here tomorrow, so in anticipation I took off the carb and disasembled so I could dunk and clean it. The engine would run great above 1000 rpm, but would not idle at 650. Some things I found.<br /><br />Primary needles(those connected to the brass rod that has a spring underneath under the arm end of the float) which is supposedly supposed to spring up and down freely was totally gummed up and jammed, no play in it at all. <br /><br />Also, other than the one o-ring gasket at the bottom of the other brass fitting toward the primary jet chamber(the one you need a really wide blade screwdriver to remove) and the accelerator pump rubber plunger, I did not see any other rubber parts to remove prior to cleaning.<br /><br />Is this normal? Seems after consulting a bunch of websits on carb rebuilding and viewing a lot of kits, there are quite a few small rubber rings and seals in a carb that I did not see.