I'm new to this area of domestics so at the risk of sounding dumb what is optispark? also the wiring doesn't seem to be too hard it's taking carb with no ecu to an ecu on mpfi, the hardest part i can see is wiring the idiot lights but if the sensors give the same voltage then it seems i would just lay the ecu harness on top of the few wires that are already there.

also what kind of boost can be run on these engines with a stock bottom end ( safely ).

also what is reccommended for a rear end since the stock one will probably die with any amount of hp over about 200hp?