Weber carb upgrade took the "lope" out of my cam?
Ok, somebody school me on this please. I have the 258 with a mild cam in it and had been running an MC2100 carb. It ran great and one of the things I like about the setup was it really loped at idle. It sounded like an old school V8 at about 600 RPM. I had a Weber 38 in the garage and finally got around to buying the adapter plates for it and installed it this weekend. It runs great, has amazing throttle response and returns to idle very smoothly. The odd thing is it now idles much smoother and does not lope. The difference is noticeable. I always attributed lope to having a good cam. Can some explain why changing the carb would affect the lope or the sound of the motor at idle?
1981 Jeep CJ7
258,T-5, D300, NT AMC-20 & Dana 30 (4.10)
Detroit Locker Rear, MC2100 Carb