351M missing at light excelleration
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New User
Joined: Nov 2003
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351M missing at light excelleration
I'm stumped. I have a 1978 F-150 with a 351M that misses during light excelleration. I have replaced the plugs, wires, computer module,fuel filter, distributor cap & rotor, put a carb kit in it, and taken all of the uneeded vacuum hoses off. I'm wondering if I need to jet it down. It has #57 jets in it and I'm at 1400 feet in elevation. Any suggestions?
Senior User
Joined: Mar 2004
Posts: 198
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From: Rocky Point, North Carol
did you check the correct vacuum hose routing? you said you pulled everything unneeded off, so be sure that you haven't crossed paths anywhere. also: base timing, fuel pressure, air intake? (may be dumb, but my Dad always said "check the simple s*** before you throw money at it.)
