Hey Guys, new to the posting game. This is a strange one. Converted 88 sd to m/a. car idle's fine after warm up, part throttle leans out to backfire, full throttle slight bog, back off a hair car pulls hard. car will run good sometimes, car has new o2's, 2 new granatelli 75 mm mass air's cal for 19lb inj and cold air intake, typhoon intake, 1 5/8 bbk equals, amer thunder catback, 75mm tb, zex dry kit, pulley's, 1.7 rr, no cam or head work done.any help appreciated.