Originally Posted by Jim0170
Was thinking of getting my manifolds Extrude Honed. Has anyone had this done and is it a good idea.
You talking about "ported". It'* an excellent idea and worth the money.
Just make sure that before hand,they're clamped to a table so they don't warp the exhaust flange when they're stitch welded around the primaries so they don't crack when they take the excess material out.
We used to have a source for ported manifolds www.gtpowderworks.com
but,the service has gotten iffy at best