i just removed my dual fans from my mild street 350. 3 row copper rad. and installed the factory mech. clutch,7 blade fan, shroud and 160 thermo. elec. fans were ok but in 85-90+ heat it started to bump up a little in stop and go. i agree that the elec. does not work well with the old copper rad. let alone the voltage shock when they turn on. 81 malibu. i just cruise and ring it out on the way home several times. i have converted both my hotrods back to factory cooling systems.Is it worth the money to go with a good rad,shroud,and dual electric fans? I'm not going to be racing,just cruising. They seem to want $500.00 more for the shroud,fans and wiring over the cost of a good rad.