Carb Spacer ?\'s I am swapping my carter afb for a quadrajet 4mv tonight. I have a 1" 4 hole spacer now and since I am going to have to buy a new spacer I thought I would try a different one. My truck has a shiot load of HP and torque, so someone suggested going with a 2" open spacer for higher RPM's. Anyone got any thoughts or suggestions? This is what I am running now. 383 64cc aluminum heads, froged aluminum flat tops, comp cam x4262h(I am thinking about switching to the x4270h this summer), edelbrock performer intake. sm465, np205, detroit locked 5.13's front & rear turning 44 boggers.