I'm hoping to get 9 out of this thing. My calculations seem like that will be the case... We'll have to see what the decking left me.
How often are these class rules updated? Wondering if theres any hope for intake n turbo changes in the future...
About the 3bolt rule: Is the header allowed to have a GT style flange with a bolted on adapter for use on a 3 bolt housing... i'd like to keep the 42 for daily driving

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My intake & electronics are based on an LT1 throttle body mounted to the sm intake... can i just weld a new plate on the front of a cast plenum to fit this? I am kinda unsure about what exactly you can modify here.
And the rule about the gauges: My whole dash n console are ultralites... do they mean by external, a gauge mounted outside the vehicle?
I think i need to find out who actually creates these rules and who inspects the vehicles... seems like a lot of this is interpretation.
Sorry for all the questions, I just am trying to learn the rules and what i'll have to rip off my car to race in this class.