I built a 305 stroker with Factory 400 crank & rods. All balanced at the machine shop using externally balanced Damper & Auto Flexplate.........Decided to go with T-5/T-56 set-up. I am interested in any recommendations and or part numbers for an externally balanced Lightweight flywheel, something other than the factory replacement 30-32 pound ones that are readily available. Want something 17-24 pounds if they exist? Similar application would be a 383 stroker flywheel.