4 bolt and 2gc

I don't really know anything about the 885 carb. Ford had a large bore 94 style carb on late PU's. I used them on the Hydro engine. Ran well, used allot of fuel.
 
Chevy conversion from bubba has been ordered. Now for some truck water pumps and we should have an engine to fire up soon
 
Couple steps closer. Installed pcv valve mock up carb and alternator for belt lenght. Thanks to Bubba for prompt service
 

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I'm going to use the Rochester 2gc on my stock 8ba along with one of Charlies' GM distributors. I've had the Merc. manifold machined to match the 2gc base and am proceeding with the carb. rebuild. I have a couple of questions:

1. I've bead blasted the carb. base. What's a good, gas resistant, paint I
can use to protect it?

2. What's a good place to start with the power valve and jet sizes for this
application? (Jets are #55 as is).

Thanks,
Howard
 
On Ron's excellent advice, and my paranoia about possibly running too lean, I bought an AFM and used it to tune my Rochester. My 2G was for a '63 283 and was supposed to come with #55's, but when I opened it I found #54's. It was showing to be consistently fat so I stepped down to #53's and it runs great. Air/Fuel ratios at cruise are in the low 15's for the most part. What surprised me was how sensitive cruise AFR was to the idle mixture screws. Best idle position for the screws made cruise ratios fat; 1/8 turn in and AFR's jumped up a full point.

On a side note; I could see clearly on the AFM that the PCV system really messes with the 2G calibration. The idle screws need to be out enough to compensate for the PCV flow, which as I noted affects cruise AFR. I ran with the draft tube re-installed, and everything was much more consistent. I can only assume that later model carbs are calibrated to deal with PCV.
 
Ross, what type of A/F meter did you buy approx. cost and where? sounds like some thing I will need in the future.---Thanks .--Jim
 
I have a 8cm engine, Isky 77b cam, 2GC off a 66 buick v6, run 53 jets, tried 49, 51, 54 and like the 53's best
 
Ross, I take it that the A/F meter only has one oxy. sensor and is used in only one bank, and single exh., and that you would need 2 for true dual exh.? sorry it took so long to get back to this post. any info is appreciated.---Jim
 
There are several excellent carburetor builders on the forum that do the stock Ford carburetors. Is there anyone out there providing the same service on the 2GC for flathead use?
Howard

P.S. Should this be addressed to the H.A.M.B.?
 
In searching for tuning info and jets for mine, I found there is at least equal support for the Rochesters. I got my first 2G off a Craigslist ad, but not knowing anything about them, I got screwed. There are several maladies to watch for. So I bought a professionally rebuilt 2G off eBay with warranty, and it has been trouble-free. It was about $180, less than a brand new 94.

PS, there are a jillion calibrations and variations on 2G/2GC's, go ONLY by the part number cast into the bowl cover or on a tag. You can look them up on-line, you want one from a small engine (< 300 c.i.).
 
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