my old 1977 chev k10 truck was having serious choke problems with the old style divorced choke. it was the thermostatic type on the intake manifold. the crossover passage that runs under the carb is plugged up therefore the spring wouldn't heat up and the choke wouldn't kick down in a timely manner or sometimes it would stick open and not work at all. i saw this version of electric type and thought it was a very good idea. the install is pretty simple. i followed them to the letter. the next day it was about 0 degrees in the morning. i pumped the gas pedal about 2 times and she started right up. no more pumping like crazy to get it going. i noticed about 3-4 minutes later it was fully open and no more choke. perfect! all the other times it would either be still on or it would be stuck open. the price (60.00) seemed a little high but it will save my starter from working so hard and save gas. so far, so good.