I got my 260/264 cams, schrick manifold, chip and RR done at stealth and got 203Bhp 202lbft up from 191Bhp 185lbft http://img78.photobucket.com/albums/v321/VR6rob/ As every body says it has completely transformed the way the engine pulls.
theres a chart in the instructions telling how to set the switch positions inside the electronic control box 3,500 is 1= on 2 = on 3 = off 4 = off 5 = off 6 = on
the second fan is driven by a belt from the other fan so they both should go round togeter. Over heating problems on the VR are normaly a stuck thermostat or electric water pump failing
you need to check that your battery is holding its charge. charge the battery ond check the voltage it should be about 12V test it again after a hour if it has droped below 10-11V you need a new battery you can also check that its charging on the car with the car running you should be getting about 14V at the battery.