50 TRIM & 550cc INJ"S

[sweet97]

are working well so far. 15 psi, no knock yet. I'll increase 1 psi at a time until I hit knock. What size inectors should I get in order to run 20 psi safely?

 

[hornetsnest]

650-680cc should work just fine

 

[TSIfreek]

I agree you will max those 550s out in no time with that 50 trim. I wouldnt even run 550s with a B16g because you have room to grow with the 660s and no have to worry about over working them and selling them down the road. Get a FPR if you dont already have one to control the fuel in idle conditions.