Hot Rods Running 4x2 intake

I have an Offenhauser 4x2 intake that I would like to run on my 409 Engine. I am planning on using Rochester 2 barrel carbs on it. Has anyone ran one with Rochester carbs before? If so, how would they need to be jetted to run on the street? My 409 is a basic stock rebuild with a 224@50 hydraulic cam. Thanks

 

, I’ve found the best way to start with multi carbs is a meticulous bone stock rebuild and straight linkage. Don’t try to plug things or turn in idle screws etc. it will never run right for a street car. Run it and it will tell you what it wants, bigger jets smaller PV etc.

 

I have Offy four 2's with 4 bolt Rochester on a 327 in chevy with flat tops. & small
thumper cam. It runs good on straight linkage (non-progressive ) It idles & makes
365 HP on the dino at about 5500 RPM. Like 51box said Run it to see what it wants
before you start fiddling with it.. I have four 2's on my 32 coupe & I have never turned
screws on it. Don't over think it!!!!

 

This is one of those situations were a competent dyno operator and a stellar carb tuner can make a huge difference in a matter of hours. Set it up, either engine or ch***is dyne, run it and start making adjustments. Don't just focus on wide open pulls. Spend time at idle, cruising rpms, and part throttle operation.

 

A 'real sharp' tuning guy in San Jose helped a newby with a 4 jugger (Man-a-Fre) bought at a swap meet. Tuner rebuilt 4 carbs, but before installation changed main jets in Rochesters to some 8 sizes smaller, so they wouldn't be 'too rich'...
4 burned pistons and a couple of valves & seats proved 'Ratio of Proportion' to have been correct.
Shouldn't have corrected the 'correct'...(at least not before a trial 'run-in'...)

 

Thanks for the replies everyone. I will start out with 4 Rochesters, make sure that they are all jetted the same, and just do a good stock rebuild on the carbs. Will have to figure out something on the linkage.