I'm installing 42# fuel injectors for my 232/240 cam. Only have the stock regulator. At what point would I need an adjustable regulator?

 

When your fuel pressure isn't right for your application. I have stock regulator with a 408, 42s, nitrous, etc.

 

Numbers in sig on stock cubes, forged with twins @20lbs.... fp @ idle is 58-60PSI

stock intank manifold
stock throttle body
stock heads
stock cam
stock FPR

 

Good to know guys. Thanx :thumbs:

However, my car has been sitting for 14 years. I'm sure the fuel in the lines and regulator are gel. Replace the regulator or just flush it out?

 

14 years? what kind of car are we talking about?

 

I'm guessing you have an LT1 car....

In that case, I recommend one as you can easily tweak your idle/part throttle mixtures to make the ECM happy. You can get your fuel trims closer before you start tuning the ECM. There are direct fit ones for this application that take only minutes to swap out.

 

Hey Lonnie. I'm sure you don't remember but I bought my Racetronix 42# injectors and Walbro fuel pump from you.

PM me with what you recommend. Thanx.

 

Will do...