ok 78 z po had put on carbs because fi had "problems" saved all old fi parts, great i got the bright idea to put it back to fi, got it all back toegether and finally got it to run sort of seems to run well up to half throttle then get realy rich black smoke , if i remove the boot between air filter and air flow meter and hold the afm flap at about half open wow does it ever run great but let it go open and it runs terrible help with any ideas, ps my fuel pump runs constantly when key is on, thinking po rewired it when he done carb swap does it matter??:stupid: