Hard to guess on egts. I would imagine if the injectors r stockish in the 700-900 range preturbo. 14-18 seams a little low to me so it might be on the high side. If u can get the turbo to spool into the 20s it would help. I bet hard pulls with that kind of weight u will be over 1100. It really depends on the amount of fuel its getting before the turbo pics up. Your auto will help keep the rpms up so it doesnt lug.