I would give Ken a call at HO-Racing. He did a terrific job on my SD and knows Pontiac engines very well. The downside is it can take some time. Mine was out for nearly a year. I'd also recommend not giving him the final payment until you get your blueprint documentation if that's important to you. Sadly, I'm still waiting for mine. He's in Rancho Cucamonga, pretty close by.
http://www.hoenterprises.com/WSFF/ho...?vCompID=27383