Carb post is a good one! On a related subject, I've read of several guys utilizing a vacume gauge to set their carb, and even using it in lieu of a timing light (or when one's not available). Whasupwidat?:
I have used this many times when a timing light isn't avail. or will not work due to non-stock equipment or just runs bad. The vac gauge should be used in a full vac. line. If one is not available the power brakeline or the trans line will work. Put the gauge in line. Adjust the idle to what sounds about right. If not sure just set to the lowest smooth sound that will not "crash" into gear with an automatic trans. The timing should be set before trying to adjust the carb. Advance it to the highest smooth reading it will achieve. Retard the timing 1 full INCH read from the gauge. Drive. If it pings retard it 1 INCH. Repeat this until it stops pinging. Now The carb can be adjusted. You may have to re-set the idle speed. Start turning the idle screws in until the engine stumbles. Turn them out until you get a high steady reading. Stop richening the mixture when the gauge reads choppy. You want these set right at the breaking point. After you do 1 side the othert will need to be done. Just keep swapping from side to side until you get the highest,most smooth reading. Should finally be done. Drive it if no pinging and running OK, if not do again. Takes a while @ first , but works!
Dragman64--What rod/jet combo are you using? I have a similar combo in my 65 and I'm planning to tune it, as soon as it breaks in. Do you have insanely high vacuum too? I have like 18" at idle and 25" at 1500rpm