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 Post Posted: Sun Oct 14, 2012 5:39 pm 
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Joined: Thu Aug 02, 2012 5:48 am
Posts: 49
Here is a tune up that works great on my 600hp Olds street engine , its an HP Pro-Sys carb.Image
1050 tune up specs

1.IF .033
2.PVCR .060
3. Trans jet .055 pri..060 sec.
4.Int Feed .039 Ext .086(none)

5.IAB .055
6.Int air .074
7.HS .032
8.Two air bleeds next to carb stud .058

9.Pri #86 .100 PV 4.5
10.Sec #92 .111
11. Squirters .035


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 Post Posted: Sun Oct 14, 2012 5:43 pm 
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Joined: Wed Apr 19, 2006 8:20 pm
Posts: 5852
Location: N.J.
trans jet.....T-slot jet?? Why 55 front and 60 in the rear??

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running E85
Best ET 8.07
Best MPH 170.71
Barry


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 Post Posted: Sun Oct 14, 2012 6:19 pm 
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T-slot would be more correct , was too lazy to drill .055 for the sec. and had two .060. Not very technical , but true! Lol... Certainly NOT trying to make a case here for a any 3 circuit carb , but idle , part throttle works excellent. Part throttle is smoother than the "new" 4150 I had on there. Probably not till next year will I have a proper wide band on the car. Than I can post some AF numbers.


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 Post Posted: Sun Oct 14, 2012 6:32 pm 
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Location: N.J.
So you think it will idle and run as good as a 2 circuit???

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running E85
Best ET 8.07
Best MPH 170.71
Barry


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 Post Posted: Sun Oct 14, 2012 6:47 pm 
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Joined: Thu Aug 02, 2012 5:48 am
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Compared to a 4150 it is smoother(at least on my engine) , but I feel , with any dominator you can adjust t-slot restricters(as well as idle feeds) , has anyone tried that on 4150's ? Its it possible or just will not work so you can adjust both , like on a dominator?


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 Post Posted: Sun Oct 14, 2012 7:30 pm 
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Joined: Mon Oct 29, 2007 7:07 pm
Posts: 1422
Location: Florida
The problem with a Dominator is the t-slots are usually too long and rarely in the correct position. Basically that the overall area is too large, and the restrictors make it work reasonably well. On a 4150 the slots are much smaller and usually not an issue, although there is no reason you can't use them if it needs it.


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 Post Posted: Sun Oct 14, 2012 7:51 pm 
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Joined: Wed Apr 19, 2006 8:20 pm
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Location: N.J.
So what your saying Mark by just restricting the T-slot and closing the throttle blades and drilling them so not to much slot is showing you can achieve a decent idle?? But what about the rest of the throttle movement??

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running E85
Best ET 8.07
Best MPH 170.71
Barry


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 Post Posted: Sun Oct 14, 2012 8:46 pm 
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Joined: Mon Oct 29, 2007 7:07 pm
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Location: Florida
Restricting the slot restricts it both ways, pulling air in at idle and fuel going through it while in the transition point.


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