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chevy 350 transplanted with intermittent miss #836844 09/19/07 02:02 AM
Joined: Jan 2007
Posts: 46
S
scotia Offline OP
Getting the Wheeling Fever
So I have an HEI 350 in my FJ40. It has been running like a top for the last two years and now it has developed a miss. I have checked everything! Wires, plugs, cap, rotor, fuel filter(just in case). Its odd though....runs smooth like new then all of a sudden it runs like I am missing a cylinder. It does this all the time now. Runs great at times then poorly at times. More bad then good though. Does anyone have any thoughts on this? I could be there at a light with it running awesome then It will just change moods on me and run the rest of the drive like crap. Can't see it being a vacuum line as the engine hardly has any on it. No emissions crap either as the engine is from the early 70's. Anything anyone has to offer would be great.
Re: chevy 350 transplanted with intermittent miss [Re: scotia] #836845 09/19/07 02:56 AM
Joined: Aug 2003
Posts: 2,854
Toronto, Canada
G
Greg_Canada Offline
Roll Me Over
How are your grounds?

89 4Runner
3" BL, M/T locks, 33"bfg mt, bilstein, Kayline, tubebumper, toyotafiberglass panels
TBI: Elocker,3.4 w/ORS,b+b,S2Sstg2cams,arias pistons,P+P intake,TRDs/c,URDpullies+7th,downey headers,MAPECU2,WEGO WB, SupraMAF,walboro255,stg4clutch, EPaOo2 sim
Re: chevy 350 transplanted with intermittent miss [Re: Greg_Canada] #836846 09/19/07 01:07 PM
Joined: Jan 2007
Posts: 46
S
scotia Offline OP
Getting the Wheeling Fever
Should be good as I changed it up. Ran a ground from engine to battery then from battery to frame. Also pulled the valve covers to see if I had a broken valve spring. Nothing yet.
Re: chevy 350 transplanted with intermittent miss [Re: scotia] #836847 09/19/07 05:51 PM
Joined: Nov 2005
Posts: 259
California
Baldy Offline
Mudrunner
Check the HEI module under the cap
Re: chevy 350 transplanted with intermittent miss [Re: Baldy] #836848 09/19/07 08:57 PM
Joined: Apr 2007
Posts: 105
V
v8yota Offline
Wheeler
x 2 on the HEI module what kind of carb are you using,,,is there any black crap in your tailpipes

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