I've got an old RB modified Holley 650 double pumper that needs a rebuild.

It's my understanding that the 650DP works best on a bridgeported 13B. Maybe this carb's not even a 650. Could it be a 600? The guy I got it from said it was a 750. Heh, yeah right.

RB's website is down so I can't check to see if 600s have double pumpers on them. All I know is the manifold was slightly hogged out under the carb which is what RB does to their bridgeport manifolds, and it fits a 12A.

I've got a Holley to Nikki adaptor which fits a Holley carb to a Nikki manifold (purchased from Hayes in '96-'97ish). I've also got a '73 manifold which flows better than an RX-7 manifold, and a '79 manifold, and two '81+ manifolds. The project car the 12A is going in may be cramped for space and the RB manifold may not fit (won't know till next month). I'll probably need to use the Holley adaptor and a Nikki manifold ('73). Either way, I'll make it to work one way or another.

By the way guys, this project is practice for when I attempt a rotary 323 like this one http://www.badrotor.co.nz/featurejames.htm

I bet peejay can guess the identity of my 'practice' car

 

If you would of posted your Holleys# I could of told you which one it is..

 

I'll do it out first thing in the morning (darn daylight savings time). Where do I look?

 

Look on the choke horns should be some numbers on there..

 

Were can I get an adaptor for a holley to a 12A manifold. Is this better then buying a new manifold?

 

That stock manifold wont flow as good as the RacingBeat/Holley intake


Your better off buying it from RacignBeat about $200.

 

the 600's from racing beat were not double pumpers. but the 650's were. just sharing info.

CJG

 

I got a Holley 650 DP on my streetport 13B 4 port.. runs good..

 

i think RacignBeat only sell 2 carbs (Holleys)
Mine is a double pumper..Mine is not from RB

 

It says LIST-3130. Is that the right number?

 

I dont know what yoru looking at but heres some numbers.......


http://holley.com/HiOctn/ProdLine/Pr...html#Universal

 

3869933-EF
LIST-3130
831

It looks like these carbs
http://holley.com/HiOctn/ProdLine/Pr.../f0-80570.html
http://holley.com/HiOctn/ProdLine/Pr...f0-80572S.html
http://holley.com/HiOctn/ProdLine/Pr...f0-4609-1.html
http://holley.com/HiOctn/ProdLine/Pr.../f0-4779C.html
http://holley.com/HiOctn/ProdLine/Pr.../f0-80770.html

It has a chromate finish, vacuum secondaries, electric choke, and RB's OMP rod lever connector and oil lines into the float boals.

 

man, if you want to sell it, let me know. i have a set of plates already bridgeported and am getting my 13B donor this week. i'm gonna need a carb and was planning on getting the holley 650 bridge setup from RB.

spoolin7@midsouth.rr.com

 

I might sell it. I'll have to think about it.

It needs a rebuild, for sure. It's got spiderwebs in the barrels, the butterflies don't open all the way, and I won't force them, the floats can be heard moving inside when the carb is tilted which means they're not frozen. If I had a digital camera, I'd snap a pic of it. Yep, this carb needs a rebuild and it'll probably be as good as new.

I might keep it. Gimmie a while to think about it. Oh, also, does anyone know what CFM it is from the numbers I listed above? They were stamped into the choke horn. Should I look elsewhere? Thanks.