Got my Ford 600 CFM carb assembled but things are not going well. Poor idle quality, will not idle lower than 1300 - 1500 RPM.
Last weekend, the Mustang did cruise great at 60 mph for several miles without any fuss, but setting at traffic lights was a real challenge....needed three legs and feet.
Distributor is pointed straight forward and timing is 10 BTDC at 1300-1400 RPM....difficult to tell of sure, keeps dying.
Points - Condenser ignition system is completely stock. Coil is stock. Ignition works well enough for good crisp starting and running at 60 mph.
Manifold vacuum at the 1300-1500 rpm range is 15" but vacuum fluctuates/floats 16" to 18".....not jerky, just "hunts".
Have disconnected and plugged vacuum line to power brake booster.
Fuel level is just below bowl plugs.
Idle mixture screws are 1 and a quarter turns out.
Manual hand choke conversion and have plugged the hot air vacuum port on right side of carb body.
Unmodified Streetmaster intake with a 3/8" composite, four hole insulator. Installed carb, insulator and manifold with thin gaskets, without sealer. Victor Reinz intake manifold gaskets installed with a little smear of Motorcraft gray RTV diesel sealant.
Engine is not burning oil, no black smoke or blue smoke. After sitting for eighteen years, I was afraid there would be stuck rings or valves.
Exhaust has no harsh odors.
Hydraulic lifters with adjustable rockers. Adjusted cold to top of lifter travel, then turned down half turn-full turn, I forget exactly. Valve train is quiet.
Pulled the new Autolite 45 ( .035" gap ) plugs and they were super clean.
With all of the plugs out, tried to check compression on warmed up engine. 9.5 Badger pistons. Unknown, mild hydraulic cam, #5=152 psi, #8=148 psi, then the hose from the compression gage is spinning in the 18mm threaded fitting and will not unthread out of the head.
. Everything was too hot to try to retrieve the gage hose....so it was time for a bag of micro wave popcorn.
Need some ideas to try tomorrow. I want to be driving my Mustang before the Nebraska winter sets in.