Car won't run in Az......

[Car Nut]

Originally Posted by azfordman

The two carbs I took apart did not look like they had jets in the secondaries, which I thought there would be, just a flat plate bolted to another plate and gasket. The inner plate would not come off without major force, so I left it alone. Since I had an abundance of #61's, and it was a holiday weekend, I decided to drill a couple of them out (not recommended, !!

I guess I misunderstood, sounded like you drilled out the secondary plates. Glad you have it running better. The Chevy guy is usually spot on, so us Ford guys have to put up with him

[vettestr]

A few more questions on timing. You now have initial timing in the 16* range, do I understand you are running a locked down distributor meaning it does not have a mechanical advance or vac. advance feature? Most normally aspirated engine combinations will definitely benefit from additional mechanical advance and a vac advance sure helps reduce fuel consumption as well.

Initial timing advance in the 14 to 16* ballpark with additional mechanical advance of another 14 to 16* (all in by about 2500 RPM ) that nets around 32 to 35* total timing at say 2700 RPM I feel is good target setting. These numbers are ballpark and need to be tailored to your engine but I will go double or nothing I am damn close. The use of vac advance in addition to these setting will only help mileage and clean her up a little. The engine manifold vac reading at idle and manifold vac reading at low/moderate cruise will determine trip point for the vac. advance function of the distributor. In short as manifold vac drops any advance added is removed so no engine performance is lost.

The efficiency of your engine combination determines amount of timing and the benefits. Mo is better in most cases.

If the engine is running well enough and not hurting its self getting ignition timing close should be a priority over fuel ratios of the carb. They do go hand in hand but setting timing will get you closer to proper carb settings than visa-versa. You will need to still go back and tweak things but in smaller blocks. Jeff C RELAY WIRING IS SPOT ON.

[azfordman]

The motor has a standard distributor with a vacuum advance. With the cap off I can manually apply vacuum to the hose and it get it to move, so it does work. When I get a chance I will measure manifold pressure under slight throttle, and I will check to see at what RPM the advance kicks in, although if I recall it seems to kick in right away. I will keep you posted.