In the middle of installing new injecotors currently. I'm curious what this buildup is on my connector tubes? How do you get it off?

It's on outside of oring, so must be just dirt. Wire brush should do it. Maybe tape off where oring is with some tape so you don't damage it. 

Normally, I take a can of brake clean and washout the connector tube holes in the head to ensure there is no debris in the head to mess up the o-ring sealing. Then clean up my connector tubes with a wire brush to remove the crud that might have formed. Just remove the o-ring its easy...

Edited February 18, 20187 yr by Mopar1973Man

50 minutes ago, Mopar1973Man said:

Normally, I take a can of brake clean and washout the connector tube holes in the head to ensure there is no debris in the head to mess up the o-ring sealing. Then clean up my connector tubes with a wire brush to remove the crud that might have formed. Just remove the o-ring its easy...

I used some carb cleaner because hat all I had and scraped off the rest with a sharp blade. I didn’t notice as much power gain as I thought I would is this because of no added timing like a box would do?