Updated SPITFIRE HEADER INSTALL 63-66 A-body

Seems like you can get rid of the 'dog leg' dump at the collector and replace it with a flowmaster 2-1 Y and then mate the (now) dual 2 1/2"s on each bank to a 2 1/2 to 3" Y once you are under the car.

it would then be a true 4-2-1 header and I bet it would flow a lot better. you could even flange it to make it easier to install.

Where do I get a set of these and how much do they cost? I see a HP opportunity for Spitfire for the larger cube cars for sure.:supz:

Harold, can we get a group buy going? I'd love to discuss the 4-2-1 mod I think there'd be as good a market for them as the present ones since so many people do Strokers today.