I have that exact set up with with stock valve springs been in my 55 Chevy for over 12 years. With a stock converter.
That combo works great for a mild stockish motor. It makes great bottom end torque.
Otherwise I wouldn’t recommend it.
The stock gm l31 cam is .428 btw.
Vortec heads will love a 256 lunati voodoo cam.
I suggest a performance intake manifold, headers and dual 21/2” exhaust.
That will get you in the 300 ish hp range and keep your torque curve low and useful in a heavy small cube vehicle.
I was asking if anyone had bypassed the fuel tank switch/valve with a T and if so what were the results.
Basically pulling off 2 tanks as if they were one.
So what your saying is: It pulled equally from both when they were full.
If you had a 1/2 tank in the both of them and filled one tank full it would pull off of the full one, until it was at 1/2 then start pulling off the pair again?
Did I understand that right?
I’ve got a -8 fuel system with a 170gph
Mechanical pump on the motor.
I think I’m probably going to have to run a manual valve.
Cool set up on yours though.
I haven’t done it to prove it but I think it will take the path of least resistance. That’s why I think it will empty one and then try to pull from the empty one.
Keeping in mind that the pump pulls fuel up through the sending units.
If they both (tanks) had sumps at the back they could be...
I’m trying to not use any hose clamps or rubber fuel line on the saddle tank set up.
The “pair” of switching valves I bought are plastic metric not sae.
So I’ve been looking at manual valves and I really don’t want to go that route.
My question:
Has anyone used a “T” going to the fuel pump...
Again big thanks to everyone for being so helpful!
All your support and pictures really helps take a lot of guess work out of our project.
My son and I both really do appreciate it.
Not sure anything will work from yours to my sons.
I’ve got a real hodgepodge of parts for his.
The bed is an 80’s model and the frame is a 74 plus the fuel system other than the switching valve is all custom 8AN.
And his fuel tanks are after market 20 gal tanks with the small 1 1/4” fill...