Where did you buy them tried to find there site and could not.
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I like the revolution marine setup I emailed them to see if I can buy the manifolds separate and run my risers. I picked up a set of stainless offshore style risers already.
Called Revolution,they never called back.Ordered IMCO from Teague.
HI I am more interested do you have those headers also for mercruiser 502 magnum pro chargered and how much hp will it gainand price terms
383's in our old 272 formula with Stainless Marine.........