Hey Guys Glad to finally join the community! I’ve been looking to this community for advise for years and has helped me a lot so thank you! So I have an issue with my car. I have low compression in cylinders 3 and 4 with 4 having 0%. This is the second time this has happened. So that’s why Ill upgrade. A mechanic suggested I get supertech valve springs and valves. I have read that the Supertech Valves have broken resulting in engine failure pretty much destroying it. I have also been suggested Ferrea Valves. I have 2 questions and any help or suggestions you have is greatly appreciated so fire way. Has anyone used supertech valve spring kit with Ferrea Valves together? Also I called Ferrea and they Have valves for a lsj 2.2L engine mine is 2.0L lnf, are the valves the same size for both engines?

Thanks guys!