I have a 1966 Nova II and currently have a 4" Harwood hood on it that came with it when I bought the car. I am building a 406 sbc to put in the car. My question is can I go down to a 2" cowl and still have the motor fit under the hood? Under the carb I will have a cheater plate and a small spacer possibly. Any feedback from those of you who have 2" and 4" cowls and the space you have below them and the top of your engine would be greatly appreciated.