OpelGT+3point3":3tryvp1r said:
I took a few pics showing the size of the intake ports and the angle I cut the tops off; toward the valve cover. Plus with some studded head bolts inserted to provide an anchor for eyebolts to attach the new intake. I cut the angle because I want the intake lower; coming out level instead of upwards. The upper section I angled off was the inner radius of the curved port; it will be a smooth transition without any severe angles. My head is cast steel as denoted by the grinding sparks; light yellow and very long, instead of short orange like cast iron. I'll try again later to upload pics. I just want one small four barrel, like a 390 Holley or an old WCFB Carter or Four Jet Rochester. Something about 400 cfm with vacuum operated secondaries.
I've worked with the Wrought Cast Carters before, both Double (WCD) and Four Barrel (WCFB)
Mainly GM crap like Buick 8's and 62 Vettes. Before those in 2011, I was probably influenced by the GM in line Pommy sixes, and the whole thing was the simplicty for setting up multiple carbs from the indermediate shaft on the firewall. Falcons have that same key idea...simplicty!
The WCD I like more because the parts situation is easier, and again, I like the easy GM linkages, and the single Twin H Hudson Hornet air cleaners that come with them.
No one knows about the WCD's, there size, and ease of tune.
People think they are YF's
The old Nash/ AMC based 195.6 and 232's had them in 1-5/16 and 1-7/16" throttle versions, and old carb dating back to the 40's, but so darned good.
No-one did CFM readings, but from my sluth work, the earlier 1-5/16 ones, about 227 cfm at 1.5" Hg, the later, about 273 cfm at 1.5"Hg.
Two up, 454 to 545 cfm on an I6 at 1.5" Hg, rated as a 4bbl.
If you use the Rat Roster Cross Ram Smoky Yunick style plate on a 6 cylinder,
I started in 2011, but got busy earning a living
My bacground was twin carb CrossRam and Twin throttle body Crossfire Chevy intake manifolds, so when I found the old AMC/ Nash six cylinder stuff, it was a slam dunk to do it on a Ford log head six.
You can mount two of them, and get WCFB results with cheaper parts and belive me, no one understands or wants WCD's, but boy howdy are they cheap and easy to tune.
You can have blue printed Edelbrock jets, and just grab early YS/YF's metering rods. As I said, they look just like Carter YFs, but a couple of Buick 8 725s Cater WCD's can be found for little money on ebay, and the leather 5/8" cup x 2.325 overall length accelerator pump for Carter carburetors is still around from Mikes carbs.
http://www.carburetor-parts.com/WCD_c_113.html
I like E85, but it forms algee, and if its put into an uncleaned Zinc Oxide carb which has ever had TEL fuel in it, then it needs to be cleaned, and given a fuel conditioner.
TK 7
is great, but subject to a lawsuit relating to some shady dealings emanating from the business owner. TheTK 7 additive for gasoline isn't in question.
These days, Lucas 10013 Fuel Treatment fuel is a good option. 10020 if relly bad. Anything that kills algee will stop the precipitation eating the Zinc Oxide or other material the earlier carb bodies are made from.
Modern gasoline and oxygenated blends are designed to fix a fuel supply and emissions problems by using the results of cropping, and its a win win situation, but has the issues of what happens with long term stale fuel. TEL was the only real solution, but we have moved on.
Video's
https://www.youtube.com/watch?v=uTaT0O8sUD0
https://www.youtube.com/watch?v=-tVrUC0NKcs
https://www.youtube.com/watch?v=6QlxU0eAbRQ