transam360

iTrader: (-1)

just bought this carb today for $100 HOLLEY 750CFM Dominator Carb. list #80186-2565 will this work on a 454 bbc bored .060 over with 12 to 1 compression and a .629 lift cam

xpndbl3

iTrader: (5)

750 is kinda on the small side, i'd be looking to resell it and get something bigger, or research if you can make it larger by swapping parts.

transam360

iTrader: (-1)

does anyone on here know if u can make the cfm bigger with a dominator i was looking the throttle blades look the some size as a 1050 cfm on is it just jetting

Apeiron

You can't increase the CFM of a carb without fairly significant modification.

transam360

iTrader: (-1)

so i should just sell it and get a bigger carb

Apeiron

I think so. You're going to need a lot of air to feed that thing. I'm assuming you're going to be racing this engine?

transam360

iTrader: (-1)

yes it is going to be raced what cfm carb do u think i will need

flyinbrian

Here is a carb sizing tool that may help. http://www.4secondsflat.com/Carb_CFM_Calculator.html

IMO, you should call or email BG, Holley, or a carb professional to get your sizing right.

MrBrooks

If you only have $100 tied up in it then put it on and go for it it's better to be a lil small than too big. I've seen too many cars slow down by stepping up to what they were told is "proper size". As long as you already have a dominator flange intake, what do ya have to lose? It'll either run or it won't.

transam360

iTrader: (-1)

ok this might sound like a dumb question but i put my dominator carb up to a 1050 cfm dominator and it looks exactly the same as mine how do i find what cfm I actually have

Apeiron

Check the list number on the carb and look it up. The 750 should have smaller throttle bores than the 1050.

transam360

iTrader: (-1)

ok so yesterday i traded the carb for a proform 850 cfm carb brand new i hope this carb works out good for my engine

lukn4trbl

Maybe a little too late since you've traded, but the flow rating on the
Holley is a wet flow test. It would probably outflow and outperform the
850 Proform carb.

transam360

iTrader: (-1)

is a 1050 cfm car to big for this my set up can get a good deal on it

always tinkerin

iTrader: (1)

Bolt the 850 on if you already have it.
When you get to the strip, make a few passes to get a baseline, then borrow a 1050 and watch your MPH difference. I'll bet it wants the 1050 all day!

-jesse