[urq] below 35 degrees cold start problem

[T. J. Saltino III (Tom)]

My '85 WX-powered 4k will not fire when the temp drops below around 35 degree.  The starter turns, but I don't get the fuel pump or spark.  I'm thinking that the battery is loosing amperage as the temp falls causing the starter to turn slower and therefor the ECU can't "see" the engine turning over?

BTW, the battery has been relocated to the trunk and is connected to the engine via a 1 gauge cable.  Should I try a stronger battery or a thicker cable?  I can jump it with my P'stroke F250 (two batteries) and she'll fire....but that doesn't help me when I'm away from the house! 

Anybody got a better idea?

Thanks,
Tom