[2blu442]

If it were me I'd keep it together and try to sell it as a unit if you can prove it's the correct W31 engine. If you don't need the intake you could sell it and purchase a Performer RPM that will breath better. Price? That's kind of difficult, I'd look to ebay and see what they've been selling for. Even there it's possible that one sold during a bidding war and then the high bidder declined to follow through with the purchase. I would guess a low price would be around $400 and the high could be up around $700. I know that's a big range, but the prices I've seen over the last year were scattered in that range. Also I believe the W31 heads had bigger valves than other 350's. If that's true there would be demand for the heads too. John