Me and roger just did a motor swap on my 89' rx7. We put in another 13b with more than half the miles the last motor did. Before we did the swap the car sat for about a month. Well after the swap we fired it up and It was running great. I was turning onto a road and all of a sudden the car started running like shit. No power, backfiring, white smoke, and it wont idle. Help a fellow 7 owner out yall.