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Domintators I believe were named in a contest way back when. They have been through several incarnations...but overall a great carb. You just have to pick the right one for what you are doing.
There are annulars, 3 circuit, 2 circuit, PV's, no PV's, 1 to 1 linkage, soft progressive linkage etc etc etc. You name it.
The 750 was a marketing thing primarily to allow the Dominator look but in a smaller street style carb. They use huge boosters to cut airflow. I rebuilt one for a guy years ago and decided to test it against the 1050 Dominator I was using on my 427 (in fact still using it on my 540). While you would think the 1050 was way too big for a streetable 427...I can tell you the 750 couldn't come close to it.
Edelbrock built some great dual plane Dominator intakes a long time ago. The C-400 was an oval port with a Dominator flange...and the C-454 was with rectangular ports and a Dominator. The C-396 was oval with a 4150 and the C-427 was rectangular with a 4150. I still have a C-454 and I can tell you they do very well.
Holley also made a dual plane Dominator intake for a short time...but it had real small ports for some reason.
Actually, my gut would say a regular 4150 style would be better due to a better overall mix of booster and bore...but if the intake was designed to accept the wider carb spacing it could help overall. I'm not too sure the 750 Dom is really necessary....
I have an offy crossram I know it dates back to at least 1969 There is an advertisement in a 69 hot rod magazine for it. The base plate is a virtual copy of chevies crossram the top plate is a little different it mounts the carbs both forward instead of reversed like chevies crossram. If you were to buy the 750 dominator you would be stuck with the 360 offy manifold or a bunch of big runner race manifolds. Most of the good stuff that the dominator came out with yrs ago is now available on the 4150 carb, there is no doubt the dominator has the wow factor. I have hot rod mags dating back to 1953 from a late uncle very interesting a lot of stuff they were doing, for instance a 6 inch chopped top 53 studabaker running 231 in 1960 with a blown 450 cube early hemi on gas, ran 237 with 20 percent alcohol this is on salt not some road with 1960 knowledge.
Last edited by Little Mouse; Aug 4, 2008 at 08:39 PM.
In the current offy catalog they have crossrams that will take 3 down draft webers. That is cool too.
Thats the manifold I have the base is #5893 there are four tops you can use on it, single quad 4150 # 5901, Single quad 4500 dominator #5948,
dual quad #5903 and the three weber #5899.
Last edited by Little Mouse; Aug 4, 2008 at 10:30 PM.