I'm going with a used greddy tt kit and it doesn't have injectors I can get a great deal on 750cc injectors but don't know if there to big and will give me problems on a stock motor set up ?

 

The larger the injectors, the less granularity you have for tuning. But they will work.

 

overkill..if your not making big power.

 

If you think you might want to upgrade to a built motor setup sometime in the future, and you don't want the expense of buying another set of injectors, then I would go with the 750cc injectors.

If you never plan on upgrading the block (eventially the stock block is going to give out, sooner or later), then go with smaller injectors. They make tuning the motor easier.

That said, Japtrix had my last motor idling and starting very smoothly with 1,000cc injectors. Then again, I had an F-CON V Pro, which has better resolution for tuning than a Utec.