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 carb recomendation 
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Joined: Fri Feb 08, 2013 5:50 pm
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Try .065's in all of them.


Mon May 26, 2014 5:39 pm
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I installed the .065 IAB.
And adjusted the idle screws, they are at 3\4 turns out.

What a difference, It revs so much better.

Thanks mark, every change you suggested made great improvement.

There is still a point under light acceleration where it went off the charts lean.
So I replaced the pink pump cams with blues. In the 1 position.
It helped but I don't think it is the problem.
It gets worse as the load increases.

I got everything in to move the IFR down I will be doing that Sunday.

I also planed on replacing the 6.5 PV 10.5s

Any other suggestions?

Thanks again!


Fri May 30, 2014 9:20 pm
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If you move the idle feeds to the lower position you might be able to get a little more out of it. Might take some .026's, then move the IAB's down .003 to .005 more. This will keep roughly the same amount of fuel, but keep the transition working longer, closer to when the mains start.


Fri May 30, 2014 10:16 pm
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Is this an application for a 3 circuit carb?

I will order more IAB blanks.


Sat May 31, 2014 8:35 am
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No need for 3 circuits, just need to tune for your combination. I did a set of 1050's for a 1200+ HP 588 last year, 2 circuit...


Sat May 31, 2014 10:50 am
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It's been busy at work, limiting the time I have to work on my car. But last weekend I was able to get a lot accomplished.
Moved the ifr's to the lower position.
Ifr .021
Iab.025
Now the transition stay on until the mains. No more lean spot.
Now I'm going to move on to wot.


Mon Jul 14, 2014 3:50 pm
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Great!


Mon Jul 14, 2014 4:37 pm
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