That's cool. I think I'll pick one up and play around with it. It's cheap enough anyway to do that and it get me some experience with tuning a carb.
The manifold thing will probably be on the back burner for a while. I'd like to get the motor tuned nicely and then maybe invest in a new exhaust system. Current is a 2 1/4" true dual system with crush-bent tubes, unknown headers, simple H pipe, Dynomax Ultraflo's that were take-offs from 98-99 Dodge Dakota R/Ts and Magnaflow 3" tips. It sounds nice but it's starting to corrode (especially where it's been wrapped with header wrap) and 2.5" should help it breathe better.