On the list of to do things for the upcoming winter, Id like to replace the 800 CFM Edelhozer with a Rochester 800 CFM Q jet that came with the junk motor I rebuilt. This guy sat for about 15 years yet is absolutely free moving and doesnt appear in too bad a shape to rebuild. It ran well enough to spin 4 rod bearings and wipe out 2 mains LOL... Is it worth it being a 1976 Pontiac 455 (automatic) smog carb? Ill be running it on my '64 special with a fresh 465 CI (+.040") , 4 speed, HEI and decent hydraulic cammed engine. It has a front facing fuel inlet but whats the upside down funnel shaped thing on the top. I havent delved into it yet, just periodically soaking it in the parts washer. Thoughts or ideas? Have a like new (maybe 300 miles) E-brock with a jet kit and some misc. parts Id like to trade for an early 800 Q jet as well. Thanks, Feel free to PM me with details as well. ws Just a few unknowns shown below: A. Screened vent behind primaries B. Funnel shaped casting C. Fume vent into air cleaner? D. Weird casting next to accelerator pump.