Yea i know what you mean about the weather Jim .
I allways tune to the best idle vacuum but now that i have the lm2 meter it seams to be easer to just set the intial timming at about 20 deg and go for about 13.5 or 14.o a/f .
the most i have ever seen from this 493 is about 8 or 9inhg at at idle .
i do try and keep the butterflies almost closed and ajust the idle with mixtures and the idle ease valve that demon has .

the car idles like i said pretty good and smooth for a solid roller
at 1000rpm .
just trying to get that tranition ciruit to come in .
the car sees more street cruising than the track these days so i would like to get it where the plugs arnt sooty black all the time .
thanks for your suggestions i think two minds are better than one on this and i will let you know what i find in fewdays or so i had uncle pass so i will be attnding his wake and funeral for the rest of the week .
Cj.