I guess one other little tidbit or piece of info that might be useful to others is what type of car and how much power are you putting down. I think this is an iportant detail of the equation.

So in that vane I will go first. 2840lb tube car with struts and a 4 link. Engine made 1050 on the dyno but since fuel change I have picked up 2mph+(A-B-A test)so may be a tad more now.