Man for a second there when you said trying to go 7's I thought you meant 1/8th mile I as fixing to call B.S. Lol
My brother has a 79' camaro and has a 1 inch carb spacer I dont know much about them but he says that you sacrafice some low end torque with the spacer but helps on the top end so I would think since you are racing the 1/8th mile I would remove he spcer for more low end grunt.
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88 mustang gt convertible bored to 306 BBk equal length headers mac cold air fender kit cowl hood nitto drag radials ford racing clutch flow masters h-pipe 160* thermostat 16 degrees of timing electric fan off 94' t-bird jacobs electronics cap and wires