Quote:
Originally Posted by NHRABill
You could always toss on a 2bbl by swapping the manifold or getting a 2bbl carb adapter ... obvious as it is that what you are doing is opposite of what is popular and it should be very cheap. I sold a nice 2bbl carb manifold setup I had on my 68 camaro 327 for $75
good luck, looking forward to see what #'s you pull I will swap my truck to carb if the TBI ever gave me an issue.
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There's an easy way to kill the secondaries. There's a lock out for when the carb is in it's fast-idle/choke mode that locks the secondaries shut to prevent full power while the engine is warming up. It's a little arm that grabs a pin on the throttle shaft. My CST10 is 150 miles away, and it's been ages since I've poked at it, but you should just be able to lock that little arm in place with wire or something with out effecting any of the other linkages, or cold start/choke functions.
Q-Jets are actually more fuel efficient than a standard GM 2bbl, if you keep your foot out of the Q-Jet's secondaries. The primaries in the Q-Jet are smaller than the barrels of the 2bbls.
I think you're starting to ask too much out of a carb setup, unless you want to live the life of a Webber carb car and simply love to tweak it for every changing condition. I'd start looking towards EFI conversions. I'd wager even a simple junkyard TBI setup would be far better than a carb for what you're looking for.