My '67 Valiant 100 Big Block 4 Speed Restoration

Thanks everyone. I was thinking that sense the rubber mat isn't porous it would retain the water better and not get evaporated. I'm actually leaning back to making the interior red again and putting the rubber mat (for the same reasons as you listed) with NO insulation (or very little to save weight). I know, I know, I should definitely put the insulation in there. I also plan on removing the heater and make it like a heater delete car. The final thing I want to do is to put a Barracuda dash in it to you know.....give it that personal touch and be different. If I could find one with a 150mph & a tach for cheap that would be awesome. Also I'm putting a latter ('73?) Dart/Duster split bench seat with built arm rest & head rest for safety reasons.