Intake spacer

[sandshark]

predator 90..........Do the intake spacers really work ?? Is weisco piston better than a koso ??

[qcitytile]

I used the koso when we had a predator. I was told they don't weigh as much which help's build rpm's. I have had a motor that liked the intake spacer and one that it didn't make a difference on. My experiance is it's not a big differance more of a fine tune.