shifter handle you have is B body 65-67 it is going to touch the dome light :D.
move the steering column collar up against the firewall and recess the heater motor back. flatten pinch seam in trans tunnel. you can put 1/2 inch spacers between k frame and frame, this moves motor down. tack weld to K frame. gives you 1/2 more hood clearance. K frame will probably need notched for oil pump housing. get smallest mini starter u can find. I think it is either 87 or 97 dakota starter.
http://www.bigblockdart.com/forum/showthread.php?2092-How-To-for-Heaterbox-Motor-Modification
383 should not hit heater motor fyi 440 does. moving collar up on steering shaft gives you more room for exhaust/4 speed linkage.
http://www.hotrod.com/how-to/transm...12-four-speed-a-body-clutch-pedal-adjustment/
welcome to the site any questions just ask lots of good people here