The Eddy heads can be opened up to max wedge. There is a 63 Dodge the runs this set-up in the Detroit area with the Indy manifold. Full interior, saw it driving down Woodward during the dream cruise. It runs as I remember 10.30 thru the mufflers. I've talked to Jake, he's found any of the AFB style carbs work about the same. Also the NSS car he drives dynoed better w/2 AFB carbs than w/2 Holleys. It ran quicker also. I believe its gone [Email]9.05@148.[/Email] As for the burst panels in the intake. I had one of the 1st Indy manifolds . I was told to always start the motor with the throttle blades wide open. That way if it coughs there's an opening for the pressure. It seems wierd at first until you get the hang of it. Then it will start smoothly w/o revving high.
Doug