I am getting a mail order tune and he recommended ditching the fmu and going with bigger injectotors. I plan on upgrading my heads, cam and forging the bottom end later than sooner. Hoping to get 400 or so HP eventually. What size injectors would be best for right now and also work on the new setup?

 

I think you will get better results on "Forced Induction". Moving..........

 

42lb. injectors worked well for me when I ran my P600-B on the stock 350 ci motor and 10lbs. of boost.

 

I thought 10lbs on stock bottom end = . I found a set of Bosch 36 lb for $300, so what do you think of this brand and size? They say 425 to 475 hp so i would guess they would fall right into my future plans. The injectors are mfg. rated at 36lbs/hr (at 43.5psi, 3 bar), and flow tested at better than 2% tolerance. Bosch 0280150967 - 36lbs/hr Pintle-style Fuel Injectors Matched set.

 

My 42's will be coming out after this weekend, $225 shipped for them if you want, they should support what you want just fine.

 

42#'s will work great; for me the fmu was a huge restriction. I think you will be happier and driveability should improve.

 

Intercooled and a conservetive tune worked fine for me but every car is different. I would recommend 42lb. injectors. If you over build your system by a small amount at least you'll have some room to grow.