FORD paid for the devolopment of the 4500 for the BOSS 9 stuff....25/ 32 or what ever the # is ......please get a carb with a more current part # , IMO .
Original 4575 carburetors were sold with a choke shaft with choke plates installed, (most people immediately removed them); there was no fast idle however.
Original 4575 carburetors were sold with a choke shaft with choke plates installed, (most people immediately removed them); there was no fast idle however.
I have decided to go to a Dominator, up from the annular discharge 850 I have now on my 545.
Since I am upgrading the fuel pump I figured I might as well let a little more air in.
The engine has a Victor on it, ported Edelbrock CJ heads, 11.8:1 compression, 251/260 @ .050 cam, 2-1/8" headers and 3" exhaust.
Converter was built for around 3500 rpm stall, but it goes over that by a few hundred RPM.
This is a street (ahem) car, but I have heard of guys really getting those dominators to run crisply on the street on top of a big (relative term) motor.
Don't feel too bad for the Hunts, they're still doing pretty well. Between the oil, the KC Chiefs, and owning no small part of North Texas, they're managing to put food on the table.
Greg
Please let us know what kind of carb you end up with and how you like the driveability of it. I'm cointuniung to waffle between a 4150 and a 4500. I need to get out your way sometime and check out your little go cart. My junk is still in pieces.
Bill
Greg , I don't see why a dominator would be a problem for street use. I have never run mine on the street but for the last 10 years I have idled around the race pits, driven a couple of miles warming up the car before hitting the staging lanes, cranked it over and over going through the staging lanes, burned out and staged for racing and left the line at an idle.......all with no problems (last week went 9.67 et in qtr.@140 mph;not too bad for the ole 69 Mustang with 102 degrees outside.) I would put my 1150 "worked" dominator on the street tommorrow if my race car was street legal. This 1150 (old style w/air horns) has run equally well on my 466 and now on my 557. I am also running a 1000cfm barry grant on my 4speed street legal 1970 Cobra torino bored to .100 over. I don,t think its any better mannered than the 1150 dom. Hope this helps.
A local speed shop has a Dominator for sale. I can find out what size it is. It's brand new. He said that he buys them from a distributor. They are new Holley's that were sent back under warranty. He buys them as "used" since Holley can't resell them again as new.
This thing looks brand new. I can get the info on it for you if you're interested. He's asking $550. I'd get it myself, but don't have the cash.....
Thanks, John, but I don't have the $$$ either! I am sure the carb is worth what they're asking, I just can't swing it right now.
Later,
Greg
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