Inliners International Forums General Discussion Engines intake manifold heater plate

I have a 194 Chevy 6 with Clifford 3into1 headers and ignitorII ignition with new coil. What I want to do now is to put on a better intake manifold either Offy or Clifford, but ive heard the Offy needs a heater plate on the bottom so it will work better for everyday driving. My question is where do i find this heater plate and how does it work (is it electrical or water??) Will the Offy intake work with the Clifford headers?!?

Thanks for any help