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Oct 19, 2009 | 06:52 PM

mustangmikew

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Need Help

I just put a rebuilt 69 long block in my 93 f150 with all the efi on top the only thing thats different is the motor and heads, it has fire and fuel but wont fire, going crazy any ideas.

Oct 19, 2009 | 06:53 PM

mustangmikew

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and the cam is big

Oct 19, 2009 | 07:34 PM

wolfsmurf

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what size engine? if you have fire and fuel and still no start its timing or compression that is keeping it from running.

Oct 19, 2009 | 07:53 PM

mustangmikew

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it is a 302

Oct 19, 2009 | 07:56 PM

wolfsmurf

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i would check and recheck the timing. its easy to get it off a lil bit and unlike those chevy guys us ford guys have to have it really close to get it to run.

Oct 19, 2009 | 07:58 PM

mustangmikew

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lol true that. i will recheck yet again, would a big cam be causing these problems

Oct 19, 2009 | 08:08 PM

wolfsmurf

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i have zero experience with cams and FI. there are lots of others here who may chime in at some point. i would think it SHOULD start up even with the big cam but maybe not run as good as stock?