New exhaust pipe. I had my exhaust guy do a 3-bolt SBC flange for the Aussie header. Also, a bung for an O2 one-wire sensor. Put an air/fuel readout on the old EGR light bracket. It is a game changer for checking the carb's tune. I'm lean at hard throttle, and rich on a hot idle. Interesting, I plugged the vac advance and corrected some of the lean and weakness. I have extra main jets, should I drill it to the next numbered drill, or do a carb dip? Should I pull the head and get more vac by cleaning the top of the valves? Either way, I have a nice tool that can be removed and plugged after I get things worked out.
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