I purchased a set from Indy about a year ago. They didn't have the intakes as listed in the ad, so I bought one from another source. These castings are machined minimally into the ports, so they need extensive (and expensive) porting, plus valves, rocker gear etc. I chose the standard(non Max Wedge)intake with a 4150 carb flange. I might not use this stuff, pm me if interested, also I could deliver to Carisle