Car smells rich on idle.

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Mr B
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Car(s): Four 3 litre Capri's and 2 Mark 1 GXL's

Re: Car smells rich on idle.

Post by Mr B » Sat Aug 01, 2020 10:50 pm

Mc Tool wrote:
Sat Aug 01, 2020 9:36 pm
Ha , :) that's what made me think of it , I too have a 390 holley and it too has an idle circuit on the secondaries, I think from memory that the secondary throttle plate opening is set with a 10 thou feeler gauge down the bore between the plate and throttle bore wall .
Yep spot-on mate, the secondaries do have an idle circuit, stop's the fuel in the secondary float chamber from going stale if the motor isn't gunned for a while and as you say the secondary blades do need a feeler gauge at 10 thou, if too far open you get the problem I had, if too tight there's a chance the blade's will jam shut in the venturies.

Lovely sound when them secondaries open!

Wayne

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