ricknbird350

iTrader: (21)

my old stock fuel rail has a regulator built into it. the ls3 stock fuel rail i was gonna use doesnt.. so what should i do to regulate fuel pressure? didnt really wanna spend a ton of money and buy AN fittings and a aftermarket fuel pressure regulator

litle88

iTrader: (20)

If its going in your 98, the regulator is in the gas tank, if im not mistaken. ALSO how big are your bores? They gotta be bigger than a 4.0

TransWS6Am

iTrader: (41)

+1 the regulator is in the tank. His sig says 418ci so its safe to say he has 4.000" bore.

5.3Caprice

iTrader: (2)

You can use a corvette filter/regulator. Check out post #8 on this thread.

82cetuner

iTrader: (9)

yes a c5 regulator filter is the quick fix to setting up your fuel system im going to go an hose all the way down to the tank so i will be running the same thing when I do my ls2 swap.

that is also the same setup I had in my 82 corvette ls1 conversion

ricknbird350

iTrader: (21)

ya im runnin a 4.030 bore.. the fuel rail i just took off my car had a regulator on it.. deffinatetly wasnt the original one so maybe thats why it has a regulator.. the car has a racetronix pump in it. so do you think it still has the regulator in the tank?

Unertl42

iTrader: (63)

yes, it is part of the pump assembly, depending on how much power you're going to make you might want to think about dual pumps.
give Lonnies performance a call, he's a great guy to deal with and has great customer service. He can answer all you questions about fuel systems

LS1MCSS

iTrader: (18)

When you look at the thing on the rail that looks like a regulator, it is probably just a pulsation dampener. One quick easy way to tell the difference is to look for a vacuum connection. If it doesn't have one, it's not a regulator, it's a dampener.