My car is boosted and has ran fine, until the other day i drove it probably ten miles from my house and and tryed to get on it, at about 4000rpm it just completly cuts out, to the point you cant even boost. Ive tryed these thing to solve my problem, new distributor, new map sensor and new plugs. The car will rev good, for instance the 2step is at 7 grand and it has no problem getting there but under load it cuts out. Think it could be a fuel issue?

Heres a link for more info about my car
http://www.clubintegra.com/board/sho...light=usdmls-t