personally i do not agree with usin bleedvalves if thats wot u r referrin to... althought there will b 100's of ppl who will say their cars r fine usin them...

but its not hard nor expensive to use ur amal valve to control it and is wot the car was usin from day 1...

Air injectors or like a HKS/Blitz boost controller will b best to use if money not issue..