Author Topic: vacumn gague tuning  (Read 1616 times)

Offline str8bloc

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vacumn gague tuning
« on: September 24, 2009, 07:57:05 PM »
i have a 86 350 with r45ts .50 thous accel coil edelbrock 600 carb 2.5 tru duals with cherrybomb glasspacks  i hooked up my vacumn gague on my vac adv with a T to manifold vacumn and im getting 15hg when i rev it drops 10 to when i drive it sputters when i give it full throttle how do i time and adjust my air fuel do i plug off vacum or do i leave it in the T . when i drive it and let it sit about 5 mins its takes a sec to start when its been off overnight it takes 2 pumps and it starts
« Last Edit: September 24, 2009, 10:12:22 PM by str8bloc »
FaTbOy

Offline team39763

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Re: vacumn gague tuning
« Reply #1 on: September 26, 2009, 05:46:58 PM »
I was having similar problems with my truck too.  It's a completely different setup from yours, but they sound like they have similar problems.  Mine usually takes a pump or two to start it also.  Before I tore the motor apart, one thing that helped a lot was a good intake seal...my intake gaskets were all blasted out and causing a major vacuum leak.  My truck ran a bunch better after that.  Hopefully somebody else jumps in here with some suggestions.

Offline str8bloc

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Re: vacumn gague tuning
« Reply #2 on: September 26, 2009, 07:14:46 PM »
well i threw my accel u groove plugs at .45 and its runnin greaat  now no more sputter on top end
FaTbOy

Offline team39763

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Re: vacumn gague tuning
« Reply #3 on: September 26, 2009, 11:39:17 PM »
Were you having trouble with fouling out plugs?  My motor seemed to foul plugs like crazy.  I may mess with my plug gaps too and see if that helps.  I think I had mine set at .035.