New carb for 1965 273 4-bbl hi-po package

Stumpy said
Right now my problems with it is a slight surging at low speed cruise (25 mph or so) and hard start when hot (acting like flooded). Yesterday I warmed it up and pulled the air cleaner off, turned it off and could see (and smell) the gas fumes coming off the carb. I read somewhere that a riser might help. When I rev’d it up and watched and it seems like the secondaries are not engaging. What rpms do the secondaries engage on a 1405?

I was thinking about rebuilding it but have never rebuilt a carb before. I’ve rejetted and adjusted plenty. I’m game at giving rebuilding a try though.

Surging could be a lot of things. Kind of hard to diagnose. The hot soak/hard start is common with the oem carb or the Edelbrock's. A thick spacer under the carb can help, a return fuel system can help, and a electric priming pump can also help. You should be able to check the secondaries opening by propping the secondary air butterfly open and opening the throttle. Your throttle might not be opening far enough. Fairly common when switching to a Edelbrock from a OEM carb.