this is the problem. When I drive the car off boost and goto wot it bogs really badly, sounds like fuel cut. It will do this until i reach about 3800 rpm at which point the car runs well all the way up to redline. It runs well at partial throttle, less than 1/4 but any more than that and it bogs. Please help.
Thanks

 

How long since the injectors were pulled and professionally cleaned?

 

clogged or faulty secondary injectors... u should upgrade to something better anyway so take apart that intake manifold and replace em... if ure gonna do a complete exhaust ... then go with 680 cc or 750 cc secondary injectors

 

Since the problem is below 3800rpm, the primaries would be the ones at fault.

 

its been about a year since I have had them cleaned. I was thinking along those same lines also. I guess thats probably what i will do. Thanks for the input nz