[NO SLO PK]

Pushrods - because of the canted valve geometry, I'm 99 percent certain you will need different pushrods.

Pistons - have you looked for Boss 302 pistons? I believe these will have the reliefs you need...TRW makes part no. L2324F for the Boss 302. Price is close to $500 for the set. I believe you will need to use 289 rods to get the proper geometry. You will need to check a few other things for compatability, like pin sizes etc. IMO, this is a much safer solution than machining and weakening a Windsor piston.

Intakes - I think B&A (?) was the company that makes or made the Clevor intakes.

For a source on your intake, you might try calling Ford Power Parts at (714) 523-7900. They have all the old Ford hipo stuff, or can tell you where to find it. They could also advise you on constructing your Clevor, as they've done it before.

This sounds like an interesting project. Keep us posted!