Yeah she is a 60 series as per badging and id card from the glove box. All C60's used the same frame right? Just spit balling here, but an axle replacement (front & rear) would then up the GVW to a higher range safely (barring mfg tag). Most DOT and such here in IN don't bother with GVW tags, they inspect axle & tire ratings in conjunction with curb and load weight. Plus farm plates further help out. I planned on titling at the 24-26K range since lord knows she'll be overloaded on occasion.
I did plugs and wires the day I picked her up and have fiddled with the carb now. With the crud run out the carb is doing better, but she has to run 10-15 minutes at half to quarter choke from a cold start to stay running. At this point I'll just slap a new reman on it, BUT only if I am going to continue to run this 292.
Im calling local truck yards today for DD availability and pricing just so im covering all bases of my options.