Well I got arround to changing the plugs out on my car but i didn't go with the NGK TR55'* that are popular here. I tried something differen't that my dad read in a chevy performance book. they take regular cheap sparkpulgs (I used the OEM AC Delco plugs) and file back the ground electrode. they file it back to expose half of the positive electrode to allow more of the spark to be exposed to the fuel micture. also, in the book that he saw this in they said it showed a 5 to 8 hp gain on a small block 350. I don't expect to see that kind of gain on our 3800'* but i DO think that it will show some gain. even if only 2 or so hp. just thought i'd pass that on to anyone else intrested in it, or anyone with a dyno that might want to see if there is a gain...
oh, and i don't see any adverse effects of it either, she gets and goes just as good if not better then before and idles smoother (probibly due to new plugs and wires).