I'm seeing 10 psi drop right now. I'm also looking into a different system. Lonnie's Performance makes a nice kit. Nice price though too.

 

Yeah, he has only done about 10-15 TrailBlazer SS's and $750 plus 10 days of downtime is too $ for me at this point.

I'm just going my own route. You saw Joe's setup on TBSSowners, he helped me out with my setup and goals as well.

But I decided on going with a dual walbro instead of a sumped Magnafuel 4301 which was the original plan.

 

Are you running stock lines?

 

Hit me on PM please

This thread was about running dual walbros and everything else stock.

 

We've done a handful of dual pump conversions.
Twin pumps, gut the bucket, install an Aeromotive firewall mounted regulator, stock feed line, use the evap as the return.

Works great! Held pressure solid up to 16psi, haven't gone higher than that.
Supports 650rwhp so far, plenty for 90% of the truck out there.

I don't see enough room in the bucket to run two pumps and the regulator, plus you'd want to regulate the fuel at the rails, not the bucket.

good luck,

 

I will be doing my dual walbro 255, dual KB BAP with a corvette regulator this weekend. I will get parts list and pics. I have already done this set up on a truck making 750-800ish AWD

 

I'm running aeromotive rails and a aeromotive FPR...I already decided to go with a return.

Just was looking for info if some guys stick with returnless.

 

sounds good man sorry I couldnt help out

 

If anyone was curious, I took out my Aeromotive regulator on the frame rail. I reinstalled the Magnuson regulator built into the manifold mounted to the fuel rail. Moving the regulator fixed my problem. I now can hold 60 PSI up to 6300 RPM's without a problem. I figured the problem was due to restrictive fuel lines. The regulator on the frame must have been seeing 58 PSI, but the frame rail was only seeing 40 PSI. This surprised me since GM runs the regulator inside of the fuel tank (as far away from the fuel rail as you possibly can be). I would suggest everyone to run the regulator(s) as close to the fuel rails as possible from now on.

 

The aeromotive regulator might have just been bad.
A lot of trucks have the reg on the frame or the stock one in the tank and experience no or little pressure drop.