Heat: We all know that heat in a speedster is wishful thinking and nominal at best with the heat piped through the 2 x 4 box chassis ( lukewarm) or piped through PVC pipe to the cabin. Two improved methods that I've tried and work well are direct from the heater box outlets to low on the the vertical surface below the rear set area this blows the heat under the seats, this will roast you out and keeps the seat toasty warm. The second method is direct from the heater box into both frame horns that forces heat into the tunnel, to do this you need to weld in heavy wall nipples as gussets in the frame horns. You need two heat outlets centered in the tunnel between the forward seat position and the pedals. This works very well but there is a draw back is it heats the the E' Brake handle and shifter to the point that it gets hot.