Big Block Tunnel Ram 660s Questions

MomsDuster said
Yeah, I remember when I was setting mine up and was reading all that transfer slot info about .020-.040 exposures. It made mine idle way up there, especially with manifold vacuum on the advance.
I was talking with yellowrose back then and he told me that with the tunnel ram the most important thing was to make sure that both carbs flow the same at idle. Then whatever the transfer slots were, that’s what they are.

I made one of them tools with the UNI-sync (I think that’s what it’s called) to get the carbs to flow the same at idle. Neat little tool to have handy when working on a tunnel ram. Biggest key is to make sure that one of the carbs throttle links is disconnected at the carb when adjusting.

Bottom line is verify no leaks (air and fuel). Verify timing, and verify carbs are synced. 1000 rpm idle is not a bad thing.

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I made one of those also. I am not worried about the idle speed, just wondering about the transfer slots being covered at that speed. Curiosity mostly. If I turn the idle screw to get them square, it assuredly will idle much faster. I know you been tuning on yours a bunch too. I have reached out to a few senior car/tuning members that have helped many people and I trust what they have to say, but no luck yet. I can definitely just set the idle speed to what it needs to be and not worry about the slots. Sync the carbs and go with it. I have a stumble from part throttle to WOT I am chasing. Idle to WOT also. Been trying some things but the covered slots made me wonder about fuel present. I hear these run so rich, etc, but mine runs well and gets good mileage, so something must be wrong..:lol: