slant 6 wont start HELP!!!!!

hi everyone im new and need your help.....i have a 74 plymouth gold duster ......i got off work yesterday picked up a cap and rotor "did a tune up a few weeks ago and they didn't have them in stock" i let the car cool down about 20 min put the cap and rotor on and NO START?????i double checked my firing order and still no fire so i put the old ones back on NO START??? i checkd FUEL / AIR / SPARK ...ALL GOOD ....my starter has been getting weak for a while now and turned it in on warranty and picked up a new ballest resistor.still no start......my dizzy hasn't moved its still tight...the rotor is spinning /i have spark coming out of every plug wire/ fuel pump,carb,accl pump all good........this is my daily driver PLEASE HELP IM STUCK AND PULLING MY HAIR OUT:angry5: