My quandary is why all the elaborate giz wizs to heat the air if the engine and EFI prefer cool air? Is it for starting and warm up? To prevent ice from forming? If so I would expect the heat supplied would be minimal. In the case of My MSD EFI (looks like a carb and frankly I would call it an electronic carb not EFI) I think I have room to access cold air from above the radiator. Now the air dam and the blocks at the back of the bonnet are making sense to Me to lower the air pressure in the engine compartment. As I do not drive in the Winter I would not worry about warm up or ice. In any event it rarely gets below freezing in the Pacific NW and I could avoid Mountain Driving.
Thanks SOSPAN. I understand GEMS (a bit) and I bought a 3.9 Hotwire (very early) that Bill Fink replaced with a Propane Carb. Because My +8 is registered as a 1973 emission laws do not apply. My MSD EFI is better than the Edelbrock Carb for emissions and self adjusts to the engine. It like GEMS also sets the timing. However unlike GEMS it is not multi point injection and achieving a steady, reliable idle has been difficult to achieve. There are now other aftermarket ECU's that could be used with the 3.9 Hotwire Unit that I think might give Me a much better EFI System than the MSD unit I am using at the moment. Sorry this is for another thread but I wanted all to understand what my interest was.
