Adjust-a-jet
 

I was wondering if anyone has tried adjust-a-jet for a Holley 950HP and what you thought of it.

we have been using the Percy's adjust-a-jet metering blocks on a Demon 750 for about 2 years now; they work great and make fine tuning the a/f ratio at the track very quick and painless. Only 'drawback' was the initial setup which required mods to our ram air box base because the added metering blocks change the location of the float level adjusting screws further outboard; had to cut two small holes in the base to clear. Also had to modify the fuel hookup for the same reason; float bowls are moved outboard. No big deal, just a little extra work.