Thank you. I will probably get the AFPR from CFM performance for both of my trucks. My ‘94 will have a roller cam L05 caprice engine and I think even some slight modifications will help with performance. I’m not ready to take on an EBL computer and making it work with my 4L80e.YES, the adjustable FPR is worth the time and effort. it will allow you to tune your fuel pressure to your engine with out alot of hassle.