Phase-2

iTrader: (3)

Well long story short after my trek of getting my install done on my sts, (thats a whole other story) anyways, I have a t67 sts kit with fmic, 60lbs injectors, ngk colder plugs, and 255 pump. The injectors, plugs and pump were brand new.

We got everything set up at the tuner and when the car hits higher rpms the fuel pressure drops to 20 psi.... Was gonna check the MAF, and if not that tomorrow check the voltage running to the pump, and we were talking if everything was good there to try running a inline pump. I've been trying to search and so far thats the best i can come up with. If anyone else has anymore ideas please chime in. Thanks

OUTLAWZ RACING

iTrader: (9)

Did u modify the bucket? The stock venturie wont keep up with a 255 walbro pump.

Phase-2

iTrader: (3)

I do not think they modified the bucket

sujomatt

iTrader: (7)

I had that same issue - if u have the stock bucket - put it back!

You have basically the same setup I DID have... T67, 60lbs injectors, walbro 255, hotwire kit tho, a cam, 317 heads, and other misc stuff.. but we determined the person had a return setup that sold me the fuel pump, I didnt know this and just dropped the bucket in with it already installed... BAD choice. IIRC it was some regulator on the bucket.

longrange4u

iTrader: (2)

Dont remember as it was a long time ago I was down this road... but I belive we got around this be drilling an extra 1" hole in the bucket.. dont quote me!

skipjobe

I had similar problems and went to an aeromotive a1000 in line pump a little pricey but it works.