For Ls Swap you need to add your sensors for your gauges
LS thread to read he has set his thread with links very well
http://67-72chevytrucks.com/vboard/s...d.php?t=377348
Electric to speedo cable conversion
http://www.dakotadigital.com/index.c...rod/prd886.htm
I prefer fuel injection over an old carb any day on those cold days one can simply fire up the truck go back inside enjoy your morning coffee with out having to sit in the truck and baby it until it warms up enough to stay idling and Fi does not need to be kick down once it starts warming up
and over drive transmissions are great on the freeway compared to a turbo 350 or 4 speed stick