Hi guy's been 5 years since i goes over a tbi kit on my amc 360. Kit is from affordable fuel injection. Work well since the install by i like to know if other has experience with different intake. I run the original 2 barrel intake that i was having with the oem motorcraft 2100. I have very good result in the low rpm but everything over 3000 rpm my engine seem to loose all power. One thing i saw is that the oem 2100 has 1.08" venturies. The tbi unit has 1.68" (1 11/16") venturies. Also find that the 2100 is capable around 300-330 cfm. The tbi unit can go up to 535 with a 305-350 unit and 670 with the 454 unit ( i run the 305-350 versions right now). I was looking over square bore (4bbl) proformer aluminium intake from edelbrock. Does it will make a difference in the higher rpm (3000 +) ? I know you save a lot of weight with the aluminium intake. What other opinions and experience in that case?