I should be getting new check valves from Dale Clark anytime soon.

I hope this will solve the problem.

 

sorry for not getting back to this thread sooner, I was busy looking and transfering into a different college.

Anyways, so I got new viton check valves (thanks Dale Clark) and just to make sure, I tested them before putting them in and they all passed.

So I go for a test run, and to make the story short, I gets full boost in both turbos before and after 4500RPM!! However, im not 100% sure if I actually do get full boost when my secondary turbo kicks in because after 3000RPM my RPM gauge spikes up very quickly but my speed does not ... I was talking to a friend of mine and he said I might have a bad clutch, basicly my clutch is slipping he said is this true?? if so, can I still tell if i get boost in both turbos? Also, is there anything about working on a slipping clutch in the FAQ thread?