hello first timer

hello this is my first time posting on this web sit as i am new to this site great site been reading for awhile i own a 1970 dart swinger /6 904 need some info .looking to drop in a 318 i already have done reaserch on motor mounts engine combo ect. need to know if i can keep my torsion bars i will not be doing any drag racing on the track just a weekend car ocasional car cruise also wondering if drum brakes would be ok till i get the funds to swap in disk brakes. By the way getting ready for hurricane wilma
thanks for any info :)