ugh never ending problems

[moparfreak3]

Alright since I scrapped my hybrid idea I put a built 2.5 in my 87 shelby z. Here are the specs on the build:
2.5 cb bored .040 over
Forged wiseco's
Ported 782 head
Ported Intake/exhaust
T2 garrett
+40's/3-bar/FWDP Stage 5
Autolite copper 63's gapped at .030
Accel super stock coil
3" exhaust
Stock t2 i/c for now
Walbro 255
Timing set at 12 degrees.
Car Idles at 22 in/hg, boosts quickly, and is very responsive.

Now to the problems. This car will run great at 7psi. The problem is when you try to run any more boost than that the car will do one of two things. It will either bog really bad or it will boost over 7 and break up then have a HARD cutout at 18 psi. The cutout feels exactly like the factory fuel cut at 15 psi with the stock computer. I called cindy and she said it should not have a cutout until 29 psi so I have an issue. From the problems that I am having I am leaning towards a fueling issue. I bought a brand new fuel pump (The old one was making one heck of a racket) and filter and had same result. I have swapped coils, put in new plugs, wires, cap, rotor, and swapped power modules with no results. It has no codes or cel. Any help would be great thanks.

[contraption22]

SRTForums answer: Have you checked your plug gap?

[moparfreak3]

Autolite copper 63's gapped at .030

SRTForums answer: Have you checked your plug gap?

Yes they were put in the night before last

[glhs727]

Kevin?
before you change anymore parts, call us.....
Thanks,
Cindy

[moparfreak3]

Yup that's me I'll give you a call

[turbovanman²]

I would check with Cindy first, sounds like a cal issue.

You did install a 3 bar map right?

[moparfreak3]

Yeah I just talked to cindy about it and she is going to look at the calibration setup. But yes I did install a 3 bar with it. We also verified it was good running it on 2fast4u's r/t with the 3bar cal.

[moparfreak3]

Well after driving it around last night we found that the fuel system is keeping up the ignition system is good and it is still cutting out so I am really thinking it is a calibration issue but we blew the oil seal on the compressor side so its going to get fixed and sold.