Hey, im looking at getting some bigger cams for my r33 gtst and i wanted to upgrade the valve springs while im doing it.
The cams im looking at getting are:
HKS 256 8.8mm lift on the inlet
HKS 264 9.0mm lift on the exhaust
I wanted to get the tomei valve springs but they say they are for 8.8mm lift only. They have another set which is 10.25mm but its for solid cams only. Now i know that if i go too hard of a valve spring you can damage the valves/valve seats so i want to know what the best combination is.
Also, I was wondering if i would be better off going for a solid cam setup?