What's it gonna run

No way. Not with that cam anyway. What are the flow rates on the heads? The 9" convertor can be shelved IMO, unless Lenny's got something trick. I'd go 8" and it will need a ballooning plate. If you're going splayed 4 link (the wishbone) I would get some real tire under it. 28s are good for a street car, but I'd mini tub it and go 30s and run a set of 4.56s. Also, get really good shocks. I've watched A Body Joe's car pull the front wheels with that Oreily setup. Great stuff there.