FiTech EFI system
The problem with using progressive secederys after a weekend of testing is the injectors don't know the throttle plates are not opening and keep pumping fuel.
In the end it cant be done...Its 1 to 1.. like it or not..And I don't care for it...at this time..
My secondary shaft will almost not move when the car is running.
When its not running there is play up-down and you can move it by hand without effort..NOT so when running......Makes it hard to drive............
As a side note this is my 3rd throttle body all with totally different issues..
The old 750 is looking better every min.