[Ant]

Morris,

Great work very impressive as you have gone the extra mile to make sure the FE gets everything it needs! I will be doing a similar base shortly. I am 373 cuin running similar rpms, K&N tech advised me that the filter I have flows 923.16 CFM @ 1.5" (h20.)

I could run an X stream on top, or make up a foam insert, if I go to a 2" drop, that will give me 2 - 1/4" above the carb flange (MAX) to allow for an X stream, but I am not running a block under the carb, which helps to allow for the air/fuel to turn in the manifold, so I dont know what is more important say a compromise using a 1/4" to 1/2" four hole block and an X Stream on what I have, the X stream may give some benefit with a bit less gap!

Another issue I have tried to find out is " how minimal the gap above the carb needs to be, taking into consideration I can cut my air tubes down on my Pro 950 carb to a bit over half, doing a 45 angle on them, as they are quite long and straight at present, that might give me a little. All this is with a BIG 3.5" scoop on the hood!