Thread: Lowell Ported 1390 EFI
08-25-2008, 07:49 PM #1
08-25-2008, 07:53 PM #2
08-25-2008, 07:54 PM #3
- Join Date
- Jul 2007
- Pontoon Beach Illinois
I believe gas valves are always better... just dont have the time or $
08-25-2008, 07:56 PM #4
08-25-2008, 08:03 PM #5
08-25-2008, 08:06 PM #6
dose the gas valve open earlier then the power ones..because lowell say the earlier the better with the 1390motor..
08-25-2008, 08:24 PM #7
non pv cylinders
Has anyone built a EFI 1390 Lowell with the later non pv cylinders? I was just wondering how they pulled without valves altogether.
I have had trouble with all the valves available including pinned stock ones. This GPR has been cursed from the start.....
08-25-2008, 08:28 PM #8
sorry to hear that outlaw...but i think the 05 and up bb have not had any problems... my is a 04 just want to get the extra low end power..
08-25-2008, 09:00 PM #9
08-25-2008, 09:08 PM #10
Gas valves transition through their range with the rpms. A much smoother hardly noticeable transition. The electric valves are digital they are either open or closed. I do get a kick out of when they open feels like you just changed gears.
Last edited by OsideBill; 08-25-2008 at 09:41 PM.
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