Since the two years this car has been on the road, Ive never had issues with the engine until this summer. It started off with the engine stumbling from idle and now has progressed to dying at idle, stumbling when downshifting, and maybe 1 or 2 things I cant remember now. My mechanic has diagnosed it as vapor lock so far, and my dad and I have done some things to counteract it. This is a car that is driven spring-autumn, so I doesnt see terribly cold weather, so I wouldnt recommend these for those who do drive it in cold weather. First off, we have the early orange airbox, and underneath that is a pipe where the intake sucks up the hot air from the exhaust to help heat up the carbs. We took off the hose and my dad found that Edge shaving cream cap fits perfectly and snugly on the end of that bottom pipe, the orange also almost perfectly matches! (You do have to trim off the safety clip though). Next what we did was put a plug in the water coolant line that leads to the carb. As of now, the car runs better when warm, i dont have to use the choke all the time and the engine revs up better. But once the engine is hot, the gremlins come up in full force, next up is heat reflecting tape for the fuel lines, hopefully that comes in soon. Do any of you guys have other suggestions that might help?