Hello, I just picked up an 89 Turbo TA with a Holley HP EFI in it. It "looks" to have a pretty good timing map (pic attached) based on my experience with other turbo motors, but I was wondering if anyone has anything to share based on turbo Buick experience? The motor is about 9.5-1 (GN pistons with the TTA heads). I am currently running 18 psi but want to verify timing and such before I start turning it up any.
It does have an upgraded turbo- but I don't know which one. I was going to post asking for id help later on.
Joe
It does have an upgraded turbo- but I don't know which one. I was going to post asking for id help later on.
Joe