I have run several cams on type s valve train with no probleams for years . I do not rev my motors past 8300 because they do not make power past that. Type s cams have a tone of lift there actualy pretty aggresive cams . Ive seen 240hp on type s cams . My point is the type s valve train is realy nice stuff i wouldnt be scared to run it on any cams but stage 3 or pro 3 because of coil bind issues. On realy big strait race cams you end up with coil bind if you dont run the proper springs with the proper cams . In other words the lobes on the cam are so big that when they compress the springs the springs actualy bottom out before the lobe spins all the way over. This will eat up valve train and destroy a head . To answer your question with out over reving the motor type s valve train will work just fine with stage 2 cams ive been running them for 2 years . As for long trips on high compression motors there is no problem as long as the motor is built properly . Actualy with the stage 2 cams the primary lobe is the same as stock cams so unless your in vtec your basically running stock cams thats why we get such good gas mileage. So as for lng trips if your not in vtec your basicaly driving a stock motor with a little more tourqe from the higher compression bottom end. All that does is when we slow down to make a turn we dont even have to down shift just leave it in fifth and it doesnt even lug the motor realy alot of fun to drive . We are also running a resonator and a hudge muffler so the car is very quite untill you lay into it then has a realy nice deep sound. I normaly trailer the car to main stream to get tunned just because i love to ride in my expidition but we have drove the car there several times and dynoed it . Also how long your built motor last completely depends on how well you built it ours has around 15,000 on it right now and as far as i can see its just broke in well it keeps making more power everytime we put it on the dyno and has more vacum then it did the first time we dynoed it.