I noticed that the CTO was taken out of the loop on my grandfathers 78 Chero. The vacuum hose should come from the EGR to the CTO and then to the carb. Well his goes straight to the carb from the EGR. He had just taken it to a mechanic who had done this. It runs great (better than mine, sniffle).
My curious self went and talked to the mechanic (Jim) about this. He said that he suspected the CTO was bad and at this altitude and temp in AZ the CTO wasn't really needed. He put the vacuum line above the throttle plate so no vacuum at idle and a gradual increase in vacuum when the plate opens during acceleration.
Any comments on this situation?
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