" From: Tom Jennings <tomj@xxxxxxx> " " I've got an AMC-labelled Duraspark box with the popular "TFI " upgrade" parts installed. Works great. Got the Ford TFI coil for " nearly nothing from a yard. " " I installed a 1.6 ohm ballast resistor, a big ceramic job, bolted " to the inner fender (there is no resistance wire in my home-made " harness). The damned thing gets skin-peeling hot -- easy 500 " degrees. I mean, peel-your-skin-off hot like the barrel of a " soldering iron. " " The coil seems fine, only a slight temperature rise. The " Duraspark box is the same temp as the fender. " " Is this normal? that doesn't sound right at all. the coil shouldn't be drawing more than an amp or two, right? so we should be talking only a few watts - hardly enough to get very hot at all. otoh they must be ceramic for a reason... ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought