Does anyone know a source for short 45 degree ceramic plug wire boots? (8mm). I have the pertronix ones but they are too long for many of the locations, they hit the steering components on the driver's side and the fender on the passenger. The back two drivers plug locations on a 440 with the Schumacher short tri y style headers nearly touch the boot. Even the high temp silicone wires eventually deform and I start to get misfires.