Help!! Won't Crank

Hey today i got a new battery moved from a refurbished old batt to a new battery 800cc, i tryed to turn my motor over it cranked but as i was feathering her to start she wouldnt so i stoped cranking and feather thinking maybe i had flooded the motor but when i tryed to start her again nothing no cranking sound nothing but white smoke and what smelled like burned rubber or plastic came out from the hood not a huge amount but a good amount, only things beside the battery i touched at all today was i checked my airfilter and messured it then put it back on didnt even touch the carb cap or anything. accel ignition and wires points distrubutor. please help 1972 plymouth duster 340 model but i have a 318 in it right now mild cam and lifters 750 holley 4 barrel carb. temp outside today is 42-53f, What happened? and what can i do to fix it/how do i fix it