cold weather edelbrock

Well winter is here,-30 or so,now my eddy perf.750 is running like crap.I've set it up according to the book,however it runs horrible,starts perfect but after 5 mins.or so of driving misses and bogs and pops like crazy anyone have any exp.running these in the cold?I recently bought 2 3310's on ebay maybe I should just swap?they are man.chokes,can't drive my truck like this fouling plugs like crazy.