wierd cutting out HELP!!!!!!

[707]

ok this is wierd... so i just put in my redtop sr. it was running fine with open downpipe for a few days then i put the exhaust on. a couple miles down the road it began to cut out when i got on the gas. after looking around under the hood for a few minutes i found that the nipple coming off the wastgate had broken off and the hose was just dangling. after JB welding it back on the problem had stopped. a couple hours later i went for a drive and it was happening again but the jb was holding up, no leak. basically heres what happens, if i drive without stepping on it itll drive fine, idle fine and pretty much run perfect. As soon as i step on it it sputters. the wierdest part is, it does it the worst in 1st gear, a little less in 2nd and by 5th it barely does it. I have no boost controller but its boosting around 12psi. I have checked so many things but still cant figure it out maybe there is something i have forgot. the fuel pressure is fine, there seems to be no leaks in the vaccum lines, i tried 2 different sets of spark plugs (no change). what else can i do???

[IanS]

stock redtop boost is 7.5 PSI your wastgate actuator may be bad, what other mods do you have

[707]

no i have a gt28r turbo. dp, exhaust, intake, some kind of chip (mine's i think), fmic, greddy rs bov

[707]

does this sound like a wiring issue???????? possibly?

[VitaminT]

What do you have your plugs gapped to and do you have an adjustable fpr? Is there any cracks in the vacuum line going t the fpr?

[707]

i didnt gap my plugs didnt know how and didnt realize how important it was but it ran fine beforeand i tried putting the old plugs back in which fine. no change. no ad. fpr. and no leaks