As long as I am n/a while I test the trans I want as much hp as it can make as is.While I was at summit store I could not stop myself but I just went for a new trans cooler.This carb looks like it will do nice with my
446
Victor head 340 cfm at .630
Victor intake
10/1 cr
112 lsa 109 ICL .260 at .050 roller
I got the trans cooler in so I hope to be driving soon.[video to fallow]
Holly carb
ps: I would use my 850 but it is a bit small I think and 17 yrs old,never cleaned

Are you foot braking or using a trans brake? That is a 3 circuit carb. like most racers use for a trans brake car
I would try it first no matter what your doing and go from there
It will probably work well

The carb is 2 circuit gen 3 version as in the link.No trans brake 5k stall 9" 3.73 28" tire.I may only get out 2 times to the track so the rest will be street driving.

Your correct, I looked again and it only has two sets of replaceable bleeds per barrel

No big deal.I made sure it was a 2 circuit and I am selling my 1250 3 circuit[s]that I have on the blower and will get another 1050 or use my 850's when the blower goes back on.

I have to admit. That sounds like a pretty decent carb for a really great price. Lots of nice features. It's about time someone started cutting racers some slack. Good luck with the new bling.

Smokin price and hopefully easy to tune in...........If I can help in any way hit me up...........

Thank you for helping so many.I got the car running after all winter on the 850 I know works good and now going to the 1050.The new trans cooler and fan are in also. idle video old carb

The carb had a anti corrosion liquid in it so I used the acc lever to pump it out2 squirts and the rest came out after I filled the bowls with fuel and started it.This was 3 pumps and 2 cranks almost not throttle given so I know it is rich confirmed by the exh o2 at 12.4 a/f.The floats are at 3/4 so later I will lower them to 1/2 per instructions.I had to seal the new trans temp fitting with ptfe paste. 1050 ootb idle
ps: the idle air bleed is 57 I may go to a 70 like on the 1250's I had on the blower.

This thing must be pulling on the acc squirters.The fuel % goes up as I push on the throttle in neutral in the garage and steady pt throttle/rpm a/f is stable at rich down to 10/1 a/f with 12/1 at just past the idle circuit.I blocked the power valve to start then put smaller jets in to be sure it was none of those 2.I have some tube squirters to put in.The float is at 3/4 so I still need to lower that.

LOL I just realized I didn't tighten the jets I put in.

Shouldn't affect idle quality but those idle bleeds could come up accordingly and of course based on the ifr sizing........I start at around a .067-.068 idles and .026-.028 on highs w/ .040 ifr's...........

Thank you.My idle is doing ok 15/1 at cold start and richer as heat gets in.I need to lean the hs air bleed from the 32 in it to maybe 40 to start and see how it goes.Just to be clear it gets rich as rpm and throttle opens
ps: the jets were tight I checked.
ps:Even if I get it to lean out the avg will still be too rich.[thinking hard on this 1]

I could really use some ideas on what to check!
Power valve gasket even though it is plugged w/blank.
Metering plate machine marks leaking past gasket?
Wrong gasket but came with carb?
I can't block the pump squirter by myself and see the o2 gauge while it is running.Thanks for the help

I am hoping for the keep it simple that it is just the floats and will check this in an hour.

You will think hard while correcting a Dominator. 4150's are cake compared to doms. 40 is too much in the hi speed. wouldn't go more that 32 from what i have seen. Sounds like your T-slots need jetting down and idle airs need leaning out. Mixture screw play into the mix as well. I finally gave up and sent mine to Dom. Dom can get ya straight on that.

keep the float level down too. it can throw you off too. no higher than half way up the glass.

My experience has been that "most of the time" rich part throttle operation when using a 4500 carb can be noticably improved by reducing the size of the t-slot feed hole in the main body.

That's where I'd start.

I also prefer to use a PV on the primary side......... Like a 6.5.

Thanks I will look into that.I need jets to adjust so I will have to get some.The float helped just a little but it still went to 10/1 air fuel by 1/3 throttle.

check this out
https://www.tapatalk.com/groups/racingfuelsystems/transfer-slot-restrictor-picture-t1392.html#p13086

i would add a t-slot restrictor and see how it acts. also, I wouldn't put a 40 hi spd bleed in it.