Hey guys, I have a issue. Back story, took in to a reputable shop to get fluids changed and troubleshoot bog at WOT. They replaced the harmonic balancer and said one cylinder had low compression(never said what it was, but it ran fine previously. After that it never had power under load really...
I'm rebuilding a Mark58A Thunderbird motor. I'm putting everything back together and it all looks right, but when you move the throttle the whole mag turns. What could I have done wrong or be missing?