timing retarding itself instead of advancing!?!?!?!? - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
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post #1 of 1 (permalink) Old 07-03-07, 08:13 PM Thread Starter
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timing retarding itself instead of advancing!?!?!?!?

i recently did a motor swap in my 91 f150 i took out a 302 and put a 351w h.o motor in it. it starts ups and idles fine but when giving it gas and watching the degrees with a timing light the engine retards itself instead of advancing the timing. we are completly stumped as to what it may be. there is a edlebrock thottlebodie on it and we thing the throttle positioning sensor is missing. could a throttle positioning sensor be the cause of this? if there is any way you could answer this for me please email me at pencidickwhip69@yahoo.com if your not a member on this forum or other wise please reply to this question. this is my first truck and motor swap so i really need the help.

thank you so much

travis.

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