they did for me on my SD car but might depend on things unrelated to the little bit of horsepower you free up. not to mention i could never run within a tenth of my previous time back to back so it was anything but scientific proof of the tenth.
Why you gonna be happy with 15.78? That is not expecting
much out of them and considering they are supposed to be
one of the cheapest and best mods, they should. It has been said that you will get that much by just
dropping the car weight 100lbs, so it does not take much for 1/10 sec.Back to the point....... You will be happy to
go 15.88 to 15.78?? Why?
I bought a used 3 piece underdrive pulley kit for $32.00 usd.
And if it drops my 1/4 mile time 15.78 or more i will be happy,
Cause im on a budget and if i could spend 32 bux for every tenth of a second to go 13 seconds or faster in the quarter mile then i would do just that.
stock 2.73's are going .... 3.73's going in the car in 3 weeks... another 5/10ths in quarter i hope