I am thinking of using the HSR on my 406, I am in the process of building. I currently have SLP runners on an ACCEL intake. But I feel this will choke the big inch small block. If anyone is running such a set up, please let me know your combo?If I use the HSR, I will run 30lb ACCEL injectors. The cam I will use is Comp Cams 280XFI HR-13, with AFR 195 heads, Hooker 1 3/4'' long tubes, through true duals and no cats, and SLP loud mouth bullet mufflers. I will have Ed Wright from Fastchip program the chip. Any help or advice is greatly appreciated.