[Ol Blue K20]

Originally Posted by bhayes1

I'm getting ready to put a new exhaust system in my '71 K20. Currently it has ramhorns on it, which I am okay with. However, to the best of my knowledge they are from a square body era truck (pic shown below). Would you guys replace the manifolds prior to having new exhaust ran or run them as is? Not really wanting to spend the extra money on new manifolds but also don't wan't to have my new exhaust routed to manifolds I will be wanting to change in the future...

Those aren't ramhorns. I would change to the ramhorns.