TR6 69 TR6 idle speed continued...

[CMC]

Looking at the minimal emission system, I noticed that the PVC hose line is only connected to the front weber carb. As noted, the idle speed is much better now - 9500 rpm, after I replaced the diaphram. Do you think I need to put a tee in the line and connect both carbs? Is the blow by sufficiently exhausted as currently set up? Cheers to all.

 

[poolboy]

One is probably enough. As originally fitted to the ZS carbs the nipple was drawing only about 2 in-Hg at most. All that's needed is a slight depression to keep the pressure from building.
As you can see in this picture I have only 1 carb sucking on the valve cover vent. And I suspect that the suction in the air box and the manifold/PCV is considerably more than what's available at the carb's evacuation nipple.
At any rate after a spirited drive you'll know because if it's not you'll see oil that's been pushed out of the block.

 

[CMC]

Thanks so much for the response. Now I can try to figure out how to get the horns working. I'm sure I'll be back asking questions on that too!