Hey man, I am experiencing the same thing. I have done a ton of research in this and the likely causes are gunk in carb and wiring problem with the parking brake Rev limiter. There are threads for the fix on that where you unplug a 2 wire connector and connect the two wires on the harness side...
Greetings, I have read up on the rev limiter issues a ton but can,t figure mine out. Mine is a build, and everything was scavenged. I have an 1989 Chassis, “I am told” 2005 engine but am skeptical. She ran great when I got it all together. Then began doing a 1/2 throttle and up sputter that...