Duraspark II is the same as the other one, with the following differences: Big "HEI" style cap and rotor big-cap adapter TFI coil and resistor The resistor goes with the coil -- it's square so you have to drill holes to mount is, so adding the resistor is no big deal. The "TFI upgrade" and "Duraspark II" are the same thing, basically. Here's my page on both, part numbers and all: http://wps.com/AMC/distributor/index.html -- All your arguments are invalid. Enjoy your unstable system. _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list