Offenhauser 225 Intake Question

I am thinking about changing over to a Offenhauser 4 barrel intake on my 225 I have a rebuilt Rochester 2 barrel carburetor on it now. One problem is there is no port for the heater water return on the new Offenhauser intake is this some thing that can be drilled in and tapped or is there some place else that the water return can be put? Also this is the carburetor that I would like to put no it. I am not up on the CFM for the 225 and would a new cam be needed if I did this change also. I need some help here. Thanks Guys any input would be very helpful Thanks Much

http://store.summitracing.com/partdetail.asp?part=OFY%2D6035DP&view=32&N=700+115

http://store.summitracing.com/partd...4294919007+304751+4294784714+115&autoview=sku







This is the water input port and what I have now

 

Ive had a lot of trouble running a 4 barrel carb. on my 225. I have a offy intake and a 390 which is crap in my opinion. I think I'll either run a stock 2 barrel or try to figure out fuel injection on my next project. Some have had good luck with the truck avenger hopefully they will chime in.

 

The Carburetor that I picked out and matched to the 225 is Truck Avenger, 470 cfm, Square Bore, 4-Barrel, Single Inlet, Dichromate is this the same as the TA 470's????

 

TA 470 = Truck Avenger 470cfm

I've run one for a couple years on recommendation of Warloch, love it. It's big for the 225 and so therefore takes some learning curve and patience getting it tuned the first time, but once you know it inside and out, it's a pleasure to work on and use.

I'm running a Holley 470 Truck Avenger, Offenhauser 360, Comp Cams 252H, GM HEI, milled/ported heads and headers.

There are plenty of threads on this subject; grab a mug of frosty beverage and do a search.

 

That might be a better set up not as much CFM I am lost when it come to this I must have been sleeping in class where is his heater come off at with the Offy or does he have heat.

 

I did a search but I think I would need a Keg of bud setup next the the computer chair there is a lot of posts out there I think Ill down size the carb CFM I would like to keep the 225 close to stock I do have Headers on allready And the stock cam.Thanks for your input I am learning

 

Oops I meant the 390, the offy is a great manifold. I've tried a lot of diff. things but always seam to get a big hesitation when I floor it among other things.

 

I think I'm going to do fuel injection next, just to do it, but I've often wondered how a 390 main body might run with all the Truck Avenger bells and whistles. Wouldn't be hard to convert one over.

 

The Offy sitting in the garage has a heater hose port in the front and back of the manifold. It's for a 231 but wouldn't imagine they'd be that different. I know cause bought it used and had a heck of a time getting the fitting out of the front of the manifold to replace the pitted one that was in there.

 

Thanks Patrick and Nick That helps a bunch

 

For referance here is a picture of an Offy # 6035DP that I have.

 

Cool what ports are water ports

 

Its been a while since i verified them but there should be the one off the T-stat housing where it reads "dual port",one on the top side front right side (as veiwing the pic),and another on the left side that also has an opening out the front as seen just left of the Offenhauser name.I cant remember if there is one in the back,I can check tonight when I get home if you would like.

 

Ok Thanks Very Much