I have been running the local grudge matches every wednesday and been tunning on my set-up for awhile now. my best time is a 11.91@ 111mph would like to get more out of it. My trans is a th400 would i lose less power thru a th350. and second of all it is a 400 with 950 carb on it IMO i think it is over tuned would a 750 carb be a better option i only run it to about 6500rpm