[mjhcobra]

I am using the 428 Police Interceptor engine and read that a wedge plate can be used under the carb to level out the carb since the PI intake has a pretty good angle on the carb mounting surface. I calc'd it to be about 5 to 6 degrees and did find a 5 degree plate that is one big plenum, not 4 individual holes.
Would using this plate cause any performance issues?

Is there a particular plate that was used by Shelby?

Thanks,

Martin