How's the build going? I've got a similar set up. 350, flat tops, 9.5 compression, RPM airgap intake, chevy bowtie heads, TH350 tranny, 3.42 posi. Anyhow, I am looking into getting a new cam for my engine. I was thinking going with the XE 268H or possibly the 262. I don't want anything too radical, just a cam that makes good power and have good street characteristics. I contacted Comp Cams, gave em my specs and they recommended the Magnum 270H. So, I guess I'll probably go with that. Just figured I'd pass on the info to ya. You might want to consider that cam if you didn't get yours yet. Or if you went with the 268 let me know how it worked out for ya. I still think that the XE268 would be great anyhow.