I will say this, if your going to take advice take it from those that post up their results and have data to back it up with and ignore those that do not post their results and have no data to back it up with and you will save $ and time and headaches.

I have the inmotion custom tune. It seems to work just fine for me. You will be fine, he will adjust your tune for what ever you need.

I do have a custom dyno tune but I datalog the hell out of my car and have access to a dyno that my friend owns so it is very convenient for me.

i had most all my datalogging info posted on here at one time but I took most of it down, some is still on my photo thread though.

with the mods you have you will want your a/f ratio in the high 11's to be safe. always be sure to run 94+ octane to be safe. if you can get klotz octane booster or run some 100+ octane gas when at the track I would advise you do that to be safe and to run a little faster mph.