Hi everyone. Looking for some help/advice. I need to slow .020 in the 1/4 mile this season to run Sportsman. I’m looking at “the governor” base plate sold with inserts to restrict air flow. Does anybody have experience with this piece? Have a 360 small block running 11.80 currently. Thanks!

I can speed or slow the car down with shift points. I know a couple guys that run them and do pretty well with them. You could also fashion a stop under the loud pedal.

I have been slowing my 10.70 car down to run 11.50s for the last ten years. I had been using a Moroso bolt style system that bolts to the right rear carb stud and is adjusted out or in , it restricts how much they throttle opens. I have been pretty successful with this setup. I recently went to a Willys adjustable restrictor plate that moves in and out via turning a screw, it goes between the carb and manifold like a spacer. So far i only made one good pass and went 11.40 but the track was too cold to hook any other runs last Sunday.

If you have a manual valvebody shift 1-3 should kill 2 tenths

To have it run the number consistently, you need to be able to adjust it to track and atmospheric conditions. 2 tenths isn't much. I would probably use weight instead of fiddling with the throttle linkage, short shifting, etc. That way the engine/converter/gear change responds the same everytime. Put a weight box in it and go test. Make a pass, throw in 25#, throw in 50#, throw in 100#, and see what it does. Get a baseline, keep track of the air - you should know how the air effects the car - and know how much every 10# speed up or slow down the car.

Do you know a good place to find a weight box and weight? I’ve done this in the past with bolt on weight and 40 lbs was worth around a tenth for me.

ET Genie is the best. We slow my wife’s car down the to 12.00 from 11.60. The car stays very consistent. they cost more than a Moroso throttle stop, but they are the best out there. The web sight is www.etgenie.com.

Kill the 60, the ET will follow.

Moroso, Calvert, Smith Performance. Would be simple to make. Weight is usually bags of lead shot although that has gotten expensive. Wheel weights melted into 5 or 10# pucks. Steel pieces. Weight bars made of 2x3 filled with lead can be bolted in to get it close, them use loose weight in a box for fine tuning. Stock or Super Stock guys know how to do it.

Weight works great but .20 will take close to 200lbs. The bolt in the throttle works great to get you close. Then adjust with weight. This method can put you within .005 with a good weather station.
Doug