Quote:
Originally Posted by pontiac jack
Ask Tom V- I think he has done it.
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Yes, I have done it, (a few times).
I did it the first time using a cast iron 1966 Tri-Power Intake set-up with Holley 500 cfm (#4412) carbs (using as was mentioned Offy solid aluminum Holley to Rochester adaptors) in 1984. By then I was working for Ford vs Holley but had three #4412 carbs that were matched on the Holley Wet Flow Stand. I used a Ford 406 Air cleaner with a ribbed aluminum top and a sheet metal base plate. The base plate was not punched for any carb air horn locations. It normally used a single Ford 406 oval air cleaner. I used a 3" tall K&N replacement air filter. I made my own linkage using Ford parts.
While at Ford, in the early days, I met a guy who worked for Chrysler (who was a Dyno Engineer for the 440 6-pack program). He has the actual Dyno carbs used for the dyno power runs for the program. These were vacuum secondary carbs. I bought those carbs and again fabricated linkage to make them work on the cast iron intake. That was the second time. The vacuum carbs looked really cool. Drove nice too.
Ford, at one time, had Holley design up some mechanical "6-pack" carbs that resembled the 440 6-pack carbs for their NASCAR "BOSS 366" Cleveland Engine. They also had Holley design some carbs for the 429 Super Cobra Jet Engine. The program was cancelled after NASCAR would not allow the carb set-up. The carbs were later sold under the Edelbrock brand as race carbs for the 440 "Rat Roaster" 6-pack cross-ram intake. I have a complete set-up of these carbs and a "Rat Roaster" 6-pack cross-ram intake. That deal has not moved for many years.
Currently I have a Barry Grant 6-Shooter aluminum intake (that was ported by Dave Wilcox) that does not need any adaptors. The carbs will bolt right down on the intake and look Holley "factory experimental" with the Mechanical NASCAR Carbs or the 6-pack Vacuum Secondary carbs. That will be the STREET set-up for my 462 Traditional Pontiac engine in my 64 GTO at some point.
All this being said (as historical info), I can help you with your project if you want to go down that path.
Note:
1) Holley carbs are very easy to tune.
2) Gasket kits, jets, etc are available everywhere.
3) The carbs will out-flow all of the other Rochester Tri-Power carbs including the 66 unit.
4) As was said, the OFFY adaptors are still available.
5) You can copy the 6-pack MOPAR fuel line design very easily and have it look "factory"
6) Very nice Ribbed air cleaners are available from O'Brian Truckers.
http://www.obrientruckers.com/
(These are currently listed as BG Air Filters but I have been buying them for years before BG made the 6-Shooter set-up.
http://www.obrientruckers.com/ecom/i...d93629d2dc.jpg
Make sure that you get the ones for the Holley 6-pack carbs, not the BG carbs, as the air horn shape might be different.
Hope this helps.
Tom Vaught