Inkdlyfe
Proven Member
- 438
- 7
- Feb 23, 2016
-
Summer feild,
Florida
Alright so I been having this problem for quite some time now and it's really starting to drive me up a wall for real so it's a fully built turbo 420a with all the works done to it I have done countless tube ups even tried to use 89 still does it spark plugs are tapped at .28 bout to go change it to .32 and see if that helps any but I doubt it I have no boost leaks that I know of or vacc leaks... Can someone tell me why this is doing this please.... But here is the problem when I'm driving it and it under load while crusing I can like tell exactly when it's about to do it it does it exactly at 4000 EVERY TIME and it's like it hits red line and I lean out and it's like the car just looses power but if I shift at 3900 it don't act up at all BUT if I'm at a stand still and drop it from 7000 rpms and keep my rpms high it don't act up at all... Why is this please help me