Too much heat

Yes, We were all talking about the exh. crossover in the intake, I didn't know there was any confusion 'till post #9. The answer is, no you can't really divert the exhaust, you
either seriously restrict it or block it. Both will affect warm-up & driveablity, and may require some rejetting, so how bad do You want to stop the paint from burning? The
crossover can get pretty hot, when the heat riser is closed, almost all of the exh. from that bank runs thru' the intake via the exh. valve tied to the crossover. The extent of
how hot & how much burns off how wide can be affected by tune, driving habits, how restrictive the exhaust system is, everything working correctly(riser sticking/slow to
open), etc.........but stock as is it is normal. I would think powder coat could handle it if everything is working normally, get a cheap IR temp gun and shoot those sections &
and see how it compares to the exh. mannys, they usually shoot 450-600degF warming up & idling/low rpm unloaded.