I took the heads off today and found that 5 of 8 cylinders are grooved pretty bad from the blower locking up. So i'm starting from scratch. With my 8:71 blower and whipple intercooler intake, will my stock 575 SCI throttle bodies will be to small?

I have a Nordic 28 heat with a 575sci. I took it to Eric at EB Marine in Nashville after talking to several people on the lake. He went through the motor installed his custom grind cam, 6lbs of boost roller lifters etc. He welded in a O2 sensor in my exhaust and reprogrammed my computer on the lake. The boat runs better than it ever has. I can't say enough about the guy. He is a very honest, capable, and affordable guy. Give him a call @ 615-714-2944. The came he put in my motor is a Predator 236/244 612/629 lobe seperation is 114

Thanks, did he you use your stock throttle bodies? Why did he put an O2 sensor in? To keep it from running lean at high RPM?