30 year old hoses....

Hey everyone...I have not posted in a long time, but now I have something to say. I'm in a 72 240z with an L.28, dual SU's and all kinds of fuxed up modifications. You would think if someone was going to do that kind of swap, that they might replace a lot of the rubber hoses that came on the car originally, right? Well whoever did it to my car didn't do that. I was driving in L.A. on the 405 to the valley, which anyone from L.A. knows is a long, slow climb until the final up-hill, which can be very strenuous on any car. Especially mine, because one of those 30year old hoses split and sprayed coolant all over the inside of my engine compartment. The dizzy is all wet, the coil is all wet, but thank god I don't have EFI, because I would have been fucxed. I let the thing sit in the valley for a day, to dry, and go to try and start it. No go. Coolant gummed up the carbs completely. I clean out the carbs, and I get a really, really rough time starting it, but it does eventully fire. The Idle is now all rough, and it takes a very long time to warm up. I filled up the coolant reservoir, but it still takes a long ass time to get warm. Like twice as long as it took before the hose split. It has been 4 days since the hose went, so I would guess everything is dry by now, right? what might be causing my sloppy starts, and terrible idle?