I just got another play toy, its a 87 coupe that has a stock roller block that has been rebuilt, it has performer heads a trickflow stage 2 cam and a ford motorsports version of the victor jr, it has a 750 double pumper with a set of perceys metering blocks, the kind where you remove the jets and use a screw to make jet adjustments I cannot find any info on how to adjust these things and the car is running very rich. Does any one know how to use these things if so please let me know. any opions will be much appreciated. Are they even worth the trouble.