Took cap off with the same results, So I went back to summit and got the Mallory 250 with bypass regulator with all the fittings and hose to do it. I was going to re-use the stock tank, but decided that I already here I might as well stick a cell in it. Plus I guess that at the performance level we're at its a smart move. Plus that pump is just to big to put back where the old pump was so its going in the trunk, along with the new Mallory filter good to 500 gph. So we'll see if thats enough to feed it...