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#25158 07/08/2003 2:54 PM | Joined: May 2003 Posts: 111 Member | | Member Joined: May 2003 Posts: 111 | Since so many answered the last guy, I'll ask. What's the best timing for a '68 250 (fresh rebuild) running an electronic ignition and manual tranny? The distributer/coil are from a 70's model 292. My book shows 4 BTDC, sticker says 6. Also, will that vaccum timing trick work well on this old truck with a 1 barrel carb?
I'll be tinkering with her this weekend (500 mile retorque) so let me know. Thanks.
35 + years of rollin' steel!
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#25159 07/08/2003 3:34 PM | Joined: Jan 2002 Posts: 244 Shop Shark | | Shop Shark Joined: Jan 2002 Posts: 244 | According the Motor's Auto Repair Manual it is 4º | | |
#25160 07/08/2003 5:47 PM | Joined: Feb 2001 Posts: 198 Shop Shark | | Shop Shark Joined: Feb 2001 Posts: 198 | I don't think you will find a 'perfect' answer on this. I'm running an electronic ignition on my stock 250 and am still running into pinging on uphill loads. I've got mine set at 8. Trial and error is what I've been doing and what has been suggested to me. Too much advance and no pinging and no power.. too little and you have the power, but also the pinging. Other here know more, but this is what I have run into. 
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#25161 07/08/2003 5:54 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | Freedo, you might want to reduce your total mechanical advance a bit, and keep your initial set at 8. That should help with the ping but keep the power.
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