After a couple of thousand miles of break-in driving I've started playing with the car. However, I feel that it hasn't gained as much as it should have and think this is down to a couple of things.

1: My MAF sensor does not work at all.

2: I'm using the stock chip.

3: I could do with a bigger throttle body and LTRs

I'm getting a wells MAF hopefully next week but I was wondering if a custom chip would help me a lot? If so, any idea how much I would gain?

My car and mods are in the sig.

Thanks for the help guys

Rob