Here's a split 60T 40 series.
https://www.gopowersports.com/split-sprocket-41-420/
Notch out the frame, clamp this to the 428 sprocket, drill out holes and bolt it (can't weld since it's aluminum), buy a 40 series chain, and use the 10T 40 front sprocket that came with the T/C.
Perfect 6:1...