Wow.. Someone had worked that maifold quite a bit. Spread bore, thermostat housing, and manifold heat. are all modifications. I wonder what they were running for a carb? Carter? Motorcraft?
I guess so. It does show that there is metal on the intake to adapt it. At least on the Harcourt. It looks like there is room on some of the other ones too, like the Wilpower. Not so much the Huffy... I think you're right about the Carter spread-bore. That's what came on the 215's right?
The stock 215's used Rochester carburetors. a 2GC 2bbl or a square bore 4GC 4bbl. Rochester 4GC The larger motors 364-425 used the spread bore Carter AFB which is the base architecture for the Edelbrock carbs. I read an article by Phil Baker where he mentioned a Motorcraft spread bore off of a 67-69 Javelin that had 1 1/16 primaries and 1 9/16 secondaries. He said it would fit a stock manifold with no other modifications. (I believe this carb was off of a 290 CI engine. Probably a tough one to find these days.
