Car starts rough and gurgles
1.) Car revs up to 2000 RPMS when its started and idles at 1200 for about 30 seconds then drops to ~900 and you can hear a slight knock before the car is fully warmed up and sometimes when driving it does.
2.) It gurgles and acts like it doesn't want to go when you give it gas
The engine was rebuilt about 30k miles ago the heads were shaved down 0.015 because they were warped.
Stock Exhaust but replaced both post cat o2 sensors
Not loosing any coolant/antifreeze
MSD Coil Pack
MSD 8.5mm Plug wires
NGK Platinum Spark Plugs
BBK Underdirve pulleys
Possibly Purge valve solenoid? Mass air flow sensor? AIT sensor?
I'm no mechanic by any means but I try and do the best research I can on these things. It's aggravating replacing things and the car still running like crap. Any input would be appreciated greatly! And ask away, I'll help out as best as I can.