I have a 190 intank and have yet to install the T-rex. The 190 gives it plenty of pressure though I guess I'd have to have it dynoed or run it on the track to see if it makes any difference (with t-rex and without). I may be losing some up top without the t-rex but.. I dunno, it pulls pretty hard(the fuel pressure gauge in under the hood). Intank would be the way to go.
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