Simi Stang

When I've used slicks on several different cars...they are usually good for 4-5 tenths off of your 1/4 mile time.

I've never ran E/Ts, but I would guess 3-4 tenths off of youyr 1/4 mile time.

Drag radials would be more like 2-3 tenths...

Obviously driving has a lot to do with it also...as well as the powerband of your motor, especially when using slicks. Having to launch at a high rpm so as not to bog out of the hole...