Roadster pickup with stock 85 small block 305 and quadrajet has been fired for first time since massive clean-up and installation from donor car.---All vacuum ports plugged on q-jet except one at rear side which went to power brakes originally-(now is plumbed to pcv valve). starts good, runs well in mid range , but will only run with choke 3/4 on at idle---stupid carburator either doesn't have idle screws, or has them sealed from factory. What do I do now ???? Don't suggest get new carburator---no money for that luxury. There must be something I can do , I just have no idea what.---on an older 4-barrel, I would have monkeyed with the idle screws untill the thing would idle without choke, but on this carb that don't appear possible.--I can put a new needle and seat in, and set the float height, but that appears to be the limit of what I can do----HELP!!!!!