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Do you you have to use a ballest resistor with points? this is on a '67 289, single point.

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1964 Comet 289 C4/3000 stall daily driver
TFS TW, Weiand Stealth, Comp XE268, Rhodes lifters, TFS roller rockers, Carter 625 AFB, Hooker SuperComps
"These go to 11." -This is Spinal Tap

<font size=-1>[ This Message was edited by: dragman64 on 5/23/02 4:35am ]</font>
 

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Most Fords came with a resistance wire as part of the harness. They do not require a separate resistor. If in doubt check the voltage output where it comes from the switch( directly before coil connection). If it is within 2 volts of the full voltage of the battery, there is no resistance wire. If it is about 6.0-6.5 volts you need no additional resistance. The other check is to check resistance across the coil. If the coil has less than 1.5 Ohms you need a resistor Before the coil connection. Hope this rambling makes some sense. Good Luck!
 

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I'll just expand a little on the post above.It's not so much if you've got points whether you need a bal/res,it's the type of coil you are using.It is usually marked somewhere on the coil whether it is designed for 12 volts or whether it needs a resistor.If it's not marked you could try testing the coil as mentioned..
 

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If your coil doesn't have the internal resistance you'll burn up your points in about 3 minutes hard running. Usually the coils say if they require a resistor on them (something to the effect that they don't require a ballast).
 
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