I thought i had a 305 but i cracked a head and it is a 350. Now i need to know what size injectors i have to tune my computer chip. how can i tell this and if they are 19.5 lb injectors,(stock 305) should i get larger ones. i have an extremely tight budget keep in mind.
thanks
jake


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87 Iroc-Z 305 TPI
Dynomax exhaust
modified MAF & airbox
modified ARAP chip
3-10" JL subs
Eclipse components

 

You need the part number written on the injector in tiny print.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
-=ICON Motorsports=-

 

I have the injector number but no stores can cross reference the number, not even the gm dealership. the # is 5235047.

if any one can check this out please help?

 

Year CID Mfg. OE Part OE Mfg. Part # GM P/N Lucas Service P/N
1985 305 AC 5235047 17110872 5207002


19lb/hr injectors off an '85 iroc.

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Where did you look up the injector PN? I wanna check mine sometime to see if they are original.

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1990 Pontiac Formula 350
Rebuilt 355
COMPCAMS 212/212 .440/.440 cam
Flowmasters 80 series.