67 383 timing

Does anybody know the timing specs for a 67 383? Had a two barrel now have a 4 barrel. any help would be greatly appreciated.

anybody?

Set it where it runs best

how do I find where it runs best, when I haven't been able to properly adjust the carb yet? It runs bad all the time, the only indicator that it's running "better" is that the engine stops lugging but at that point it backfires. when I set it in the "sweet spot" it will backfire, so I'm not able to find a point where it runs good.

One other thing, is there an easy way to check the play in my timing chain?

I have:
Re-man dist (new)
ignitor 2 (new)
flame thrower coil (new)
summit 8mm wires (new)
new plugs gap .35
rebuilt holley 4160
71' 4bbl intake

Thank you.

are you sure the wires are installed right might have a couple crossed

I did install the parts at 5:30 this morning so I could have... but it started just fine and idles ok. The hesitation/stuttering at partial throttle is what is getting me all confused.

You're putting all that on a car that possibly has a trashed timing set? If the chain is stretched, you won't be able to get your timing set

Yes. I don't know if the timing chain is stretched...that's why I'm asking what my timing should be set at? and how to check for a stretched timing chain. I have tried repeatedly to "set it where it runs best" as that is the only advice I have gotten from this forum, and still have no power and hesitation. So don't know where to go from here, I am frustrated and out of ideas.

One way you can check your chain (to a point anyway) would be to slip a socket on your crank and move it a bit in each direction. Watch your rotor and see if it moves with it. If the chain is stretched, then when you change directions the crank will move quite a bit before the distributor follows.

Also.....like I said you won't be able to set your timing if it's stretched. The mark will jump all over the place

The shop manual for a 66...383 4V is +12 BTDC... I would guess a 67 would be the same. ps....one reported method for setting the timing without timing light is to use a vacuum gauge and adjust to maximum vacuum..then back off 1-2 degrees.. Of course if your carb is messed up, or the timing chain bad... then all bets are off..

Good luck...

How was the engine running before all the changes?