well there is no limit psi wise I guess...its more on just fuel pressure. think of it this way the more psi you put into the engine the more pressure you need to equal the added pressure induced into the engine. most the time people will tell ya that its 350whp that the stock fuel system can handle. I know jim got like 380 on his but he was a freak lol
RISE AGAIN EGGYOLK316 WHP 296 WTQ ZETEC CREW #271
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