After wading through more afc threads than i can count i haven't found my answers. i want to use 550's but i'm not sure if i'll be able to correct that much with the afc, they only can go +,- 50% right? 310 to 550 is a 74% increace in flow so i think i'll have to use 440's. should I get peak/hold injectors? my stock ones are, they have the resistor box already.

 

http://www.angelfire.com/ab7/diymaplimiter

You can adjust to scale more than -50% if you so desire.

I sell them prebuilt for $21 Paypal.