Here's what I ended up doing, I took the air off the back of the #3 cylinder baffle, routed it forward right up against the cowling to the heat muff on #1, then the heat muff discharge is nestled up against the sump/block to come back aft to the heat door. It was a little interesting getting it in there but that's the only way I could get it routed with what I considered to be acceptable clearance from the exhaust heat.
Greg Niehues - PPSEL, IFR, Repairman Cert.
Garden City, TX VAF 2019 dues paid
N16GN flying 400 hrs and counting! Built an off-plan 9A with too much fuel and too much HP. Should drop dead any minute now.