hey i got a automatic 98 civic ex, i have a zero gauge grounding kit, headers, aem pulleys, underdrive pulley, high compression pistons, cometic head gasket, aem intake, skunk 2 throttle body spacer, i just decked the block and the head, i also got a three angle valve job and port/pollish, balnced rods pistons and crankshaft, crankshaft polished, rehoned cylinder walls, im still brakeing it in and when i drive it on the freeway in the morning the car kind of stalls by itself. also evrytime i stop and i keep it in drive the cars rpms drop to about 300 and it wants to die but when i put it in neutral it all good again can anybody help me? please i want to know what can be the problem
THANKS