The 250 Chevy I6 was not installed in the 1965 Chevy and did not come out until 1966. However here are the specs for the 250 which someone may have installed in this truck.
Spark Plug Gap - .035 AC plug 46N
Point Gap - New .019 Used .016
Dwell Angle - 31-34
Timing - 6 degrees BTDC
Firing Order - 1-5-3-6-2-4
If you have the 230 Chevy I6 which is what was installed in the 1965 then the spec on it are.
Spark Plug Gap - .035 AC plug 44N
Point Gap - New .019 Used .016
Dwell Angle - 31-34
Timing - 4 degrees BTDC
Firing Order - 1-5-3-6-2-4
Which General Motor cars take the 1987 Chevrolet Electronic ignition tune up?
Timing is 4 degrees before top dead center with the distributor hose disconnected and plugged. The warm idle speed is 500 RPM.
All you can do as far as a tune up, is change the plugs. Your auto parts store should be able to tell you what to set the gap to.
there are many, I find www.autozone.com very handy
Needs a tune up
To tune up your Celebrity's engine: Replace the spark plugs, gap is 0.045". Put on new spark plug wires.
As far as I know there is no carburetor in an 89 Chevy corsica.
tom Jones
Tune up is not specific enough. Unless you have 100k miles on your Lexus then it does not need a tune up. You should call your Lexus service department, or go to Lexus.com to find out what the specifications for the service interval you desire.
About $100 for iridium plugs, and wires for the 6.0L V8 engine.
I believe this information is correct : point gap ( .024 to .026 ) dwell ( 35 to 38 ) spark plug gap ( .032 to .036 inch ) ignition timing ( 6 degrees BTDC - manual transmission ) ( 12 degrees BTDc - automatic transmission ) for a 1965 Ford Mustang 200 cubic inch straight 6 cylinder engine
A 2004 Chevrolet Venture is tuned up by replacing the spark plugs, cleaning the fuel injector, and changing the oil. This will help improve performance and prolong its life.