Hey guys new to site and turbo regals.Just had a stock rebuild on my 87 T Type done. The car is totally stock except I think the cam was upgraded not sure of specs I'm trying to get them from builder. The car seems to be loading up on fuel and stumbling down low. I have ruled out coil, ignition module and TPS. My question is going with a little bigger cam cause problems with the stock chip in the ecm.