I'm ready to firebomb my 60 and quit this expensive addiction... I had the infamous warped intake/exhaust manifold problem due to the carb cooling fan being disconnected for god knows how long - POR. Since I had fixed it on my previous 60, I thought no problem. Here's what I have done to date: -intake/exhaust manifold planed at machine shop. -new OEM intake/exhaust gasket -rebuilt carb (cruiserparts.net - they do a great job BTW) -new insulator and insulator gaskets -new egr pipe gasket (pipe comes off exhaust manifold) -new exhaust donuts -new OEM carb insulator/gasket assembly -new OEM vacuum lines -new HAC assembly -verified vacuum hose routing several thousand times... Runs great with 20PSI of manifold vaccum - only if the EGR valve is disconnected. If I connect the EGR, the manifold vacuum drops to 10-12 and barely idles. A cruiser freak in the area was parting out an old 60, so I bought the EGR valve and switching assembly. No difference. The truck also hesitates and jerks occassionally at highway speed even with the EGR disconnected and lines plugged. Any suggestions?