I have a 360 with eddy out of the box heads, hughes 1.6 rockers, 10.5:1compression and a MP .557 cam, MSD digital 6 ignition with an msd pro billit distributor that is locked out, Holley hp750 with 80/82 jets, Eddy airgap intake. For some reason my car just wants more timing. At 36 it runs awful, 41 degrees its happier and I'm nervous about giving it more, but the car runs faster the more I give it. So far Ive ruled out the balancer, distributor,and ignition box as I have swapped them out with No change. I did degree the cam and everything came in spec with the cam card and left it straight up. Anybody have any input on what I should do next?

Is this 93 pump? Could be fuel atomization issues or way too rich. Whats the AFR? Too cold of a plug? Polarity on the distributor/rotor phasing wrong?

Have you verified that when timing tab and balancer read "0" that the piston is truly at TDC?


Joe

Could be any of the above... swap the wires at
the dist first and see if the timing drops

Yes 93 octane, plugs look good for fuel mixture, yes my plugs are too cold, as for the polarity it plug and play, GI proof cable.

Could too cold of a plug cause my problem?

Did it, it is

Even though the cable is GI proof its worth a shot

41? Yikes.. how far back ya retard the cam lol.

There was a bunch of those cable made backwards... cut
them and try it worst case you you solder it with some
shrink tubing... one way it picks up on the leading edge
the other way it picks up on the trailing edge
EDIT
On the dyno my W-5 wanted 40* but that was at the
max.. your engine is still looking for more..either
the items above or the cam is retarted...you did go
off the second valve correct(intake)

My buddy had this happen to him once. He used one of those timing lights with the knob on the back. Looked legit with a regular light. His was off.

I degreed it off #1 intake, second lifter back. I think I can un-pin the cable and swap it

Interesting, sounds like my timing light. I'll try another.

[quote=The Sphinx] I have a 360 with eddy out of the box heads, hughes 1.6 rockers, 10.5:1compression and a MP .557 cam, MSD digital 6 ignition with an msd pro billit distributor that is locked out, Holley hp750 with 80/82 jets, Eddy airgap intake. For some reason my car just wants more timing. At 36 it runs awful, 41 degrees its happier and I'm nervous about giving it more, but the car runs faster the more I give it. So far Ive ruled out the balancer, distributor,and ignition box as I have swapped them out with No change. I did degree the cam and everything came in spec with the cam card and left it straight up. Anybody have any input on what I should do next? [/q

Something is wrong if it runs bad with less timing if timing was retarded it would be just down on a little power not run bad. sounds like more timing is covering up a problem.

A simple way to check the cable is with an ohm meter, no cutting involved.

Timing is just a number, if the motor is happy at 41 leave it. My eddy headed motor was 38 and my indy motor was 41. My W9 motor likes 36. Bretts engine master Indy headed motor made the most power at 42 on the dyno.

Seen a lot of different small block combo's that like 40.

I pulled Eddie heads off a 416 flat tappet short block years ago that liked 34.
Put a W5 top end on that short block and it liked 40. Turn it back to 36 and it slowed down a whole tenth.
Later built a roller short block, put the W5 heads on that and it liked 32.

1967Dartgt which engine masters motor?

well I reread your OP, I will bet you are checking your timing at Idle, check your timing at 5000 and see what it is. Some of the digital have bad cases of magnetic hysteresis. I had some digital 7 boxes that drop 1 degree per 1000.

I would really like to see a pic of the plugs.



Joe

Yours!

I check it at 3000. My fuel air mixture looks good, no noticable annealing line on the ground strap of the plug of the plug