Headers VS Manifolds

Waggin....OK you are correct the 273 ,manifolds are significantly smaller altho the shape is almost identical.....a non-studying glance they look the same but they are not. ANOTHER dead end. Called Laysons today since they seem to have copies of the spitfire and modified spitfire copies that are specific for /6 k conversions....they are out of stock and on backorder! Lovely!