Well the last car i had them on was my 72 Camaro..i know cheby..it had around 350hp guessing obviously but an educated guess combined with 4.56 gears..it came out of the hole hard. Im sure if you had 500+hp you could melt em but in my case with mild motors they hook great, the Demon has 3.23 sure grip with a 4 speed..gonna keep it that way.