Procomp Electronics- 4 Barrel Carburetor 2-Circuit Metering Block

Noticable improved throttle response which is disheartening because now the car wont idle.Put the stock one back on and now its fine so i know there is something wrong with these.Revised...For my application i had to remove the idle circuit air bleeds..Working fine now.

These blocks are the same as the 1003's except these have provisions for a power valve whereas the others are blocked