Here's my tow-cents on the Rochester B model idea.
I too was mad at my Monojet. It was noisy, it wouldn't idle below 900 RPM, it wasn't the "right" carb for my '66 250. So brainyak me goes and buys a Rochester B. Now I have a noisy carb that won't idle below 900 RPM and washes the cyl. wall down with raw fuel between 2000-2500 RPM. It stumbles around worse than Chevy Chase in a SNL skit and generally stinks up the joint.
I've also exchanged it three times because the throttle shaft or float-bowl was leaking. I've had it bench checked, professionaly tuned, tweaked and twiddle with by every "Carb Expert" in Oklahoma City and it still runs like doo-doo.
It's the worst idea I've come up with since I decided to get even with my Air Force recruiter and joined the Marines (I showed him, I went to 16 weeks of Marine Corps boot camp instead of 8 weeks in sunny San Antonio learning to be a Zoomy).
So, it's comforting to hear someone else having carb problems on their 250. Misery loves company. Let me know how the 2bbl. works out. Going back to the Rochester B is fine if your doing a nice restoration, but I wouldn't do it again on a bet.
I know someone will read this and tell me I just don't know what I'm doing, and that may well be true. What would be nicer would be the solution to this. I'm thinking 350 SBC, and a nice easy to tune Holley, but that's giving up and that ain't no Stovebolt.
