Laine you need to drive it to see how much better it feels not dieing off after 6500rpm like they normally do in particular.
Its a modest gain for very little money and has no downside to it, essentially the same as fitting a set of 428 cams but at a tenth of the price.
As for torque figures. Millerin did 165 on a standard engine and a lot of people do 145 so it's pointless saying what the exact figure should be, you just have to look at each engine and see if it's better after and this clearly is, especially at the very top end.
Its a modest gain for very little money and has no downside to it, essentially the same as fitting a set of 428 cams but at a tenth of the price.
As for torque figures. Millerin did 165 on a standard engine and a lot of people do 145 so it's pointless saying what the exact figure should be, you just have to look at each engine and see if it's better after and this clearly is, especially at the very top end.