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The 1989 Camaro didn't have a 350 TPI (not stock, anyway)
TBI or TPI? 305 or 350?
Clogged fuel filter or weak fuel pump.
Its not a good idea cause this will have more pressure., the tbi its a low pressure compare to the iroc -z tpi
The typical 350 cubic inch Chevrolet engine requires a fuel pressure of 12 to 18 psi. The exact fuel pressure required is dependent upon the year and the engine application.
Your fuel pressure drop could be do to a clogged filter, pinched line/hose, or a weak fuel pump. You should have around 35 psi at idle and 43 off idle. I hope this helps answer your question.
6 degrees before top dead center on the 305 TPI
On the fuel rail on TPI, LT1 and on the throttle body if it's TBI.
yes
pressure requirement for 97 5.7 ltr is minimum 52
average is usually 40PSI Key on (engine off) and 35 PSI with engine running), they're running on 17B injectors. Holley offers an upgradable Fuel Pressure regulator (for Chevy 5.0L TPI but will fit the 3.4L) http://www.holley.com/512-501.asp
walbro 255lph