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I have a 1979 F250 trailer special.
Dropped a new 400 in it last june.
The only vacumn I have hooked up is Brakes dist pickup trans heater.
My question is does any one know what my timing should be set at?
I shold mention it is a 2 barrel
Try setting it at 6 degrees BTDC. Then, drive it and keep bumping it up about 2 degrees until it starts pinging. From there, drop it back 2 degrees or so and it should be fine. I think the final timing setting will be around 6-8 degrees BTDC.
When you get the timing set, I am curious to hear if you can actual run 12 degrees of timing without pinging when using 87 octane gas. This new gas is really bad as far as pinging is concerned.