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Old 09-09-2007, 06:48 PM
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ing. timing

just installed throttle body 5.0 ho engine into my 1981 ford f250 4x4.it came out of a lincoln year unknown,am wondering what to set timing at.have it running but very sluggish.. put on a 600 edlibrock carb and intake. thanks for any help..

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Old 09-09-2007, 07:12 PM
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Hey Mixer,
Did the same thing on a 81 Lincoln engine.
About 16-18 works well.
If your advance is fast and it pings, use a little less or re-curve the distributor.
Make sure the vacuum advance is working too.
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Old 09-15-2007, 09:21 AM
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thanks boss68 will try it .

will try and time it at 16 as you say, idles good at 8 right now but no power also i have it set as 302 (firing order) but some say to set as a 351 because it is spose to be a ho motor. might have to get the numbers off engine and find out what year lincoln it came out of. had 5.0 ho plack on top of fuel inj. manifold. so thanks for the info will try !!!!
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Old 09-15-2007, 09:53 AM
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Quote:
also i have it set as 302 (firing order) but some say to set as a 351 because it is spose to be a ho motor.
Uh, ........what??
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Old 09-15-2007, 10:17 AM
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Quote:
Originally Posted by mixer4
i have it set as 302 (firing order) but some say to set as a 351 because it is spose to be a ho motor.

302 fireing order is 15426378

351W & 302HO is 13726548

the fire order is controled by the cam, if its running good now your order is correct, otherwise you would have quite a bit of back fireing.
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Old 09-17-2007, 12:14 AM
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If it runs smooth under load don't change the firing order!
The original intake will have the firing order on it, just check and be sure the wires are right.
The throttle body engine is a nice running engine but would not generally be considered an HO.
All Lincoln throttle body 5.0's will be pre-1986. Intake will have a part number with the second digit being the year within that decade.
Sounds like you may have a later port injected model from your description of the intake.

Last edited by boss68; 09-17-2007 at 12:19 AM.
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Old 09-17-2007, 11:01 PM
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hey boss68

well got my fence built today so had time to play with truck.tried the 16-18 timing,same crap pop pop skip,ha ha..so i sat firing order as a 351 and walah.it started right up ran smooth no popping.drove down the road like a Lincoln(ha ha). is running a little fast and rich so have to adjust carb (edelbrock 600 )and maybe fine tune timing is set at 6 degrees.thank you for your advice and help.it looks like I,ll have a nice 4x4 hunting rig this year!!!Now I can start working on my pet project a 1979 Chevy 4x4 short wide bed. Going to do a frame off restoration. Going to lift it 6 in.sup.and 2 in body. I have a buddy down the road with a 1979 bronco who braggs a lot and would love to take him down a notch.ha ha. so thanks again for the help,, hey holder350 thanks for the tip about the back firing, it was the firing order. I guess the newer 5.0 s have a roller cam that is made to run the 351 firing order. do not know why, but it is that way so thanks to all you gentle men!!!!

Last edited by mixer4; 09-17-2007 at 11:08 PM.
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Old 09-18-2007, 08:51 AM
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Great news!!!!!!! Glad you got it fixed!!
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Old 09-19-2007, 09:34 AM
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Sounds great!
Glad we could help.
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