Will the 350 TPI bolt onto my 305 TBI or will the engine size make a differance?? (ie, will 350 tpi setup only fit a 350 block?)Thats the only thing i need to know before i decide to convert, Thanks!

[This message has been edited by MEC91Firebird (edited February 12, 2001).]

 

With time and money, you can do anything...


Actually, if they are both 87-up or pre-87 then it will bolt right up no problem. If not the center 4 intake bolts are at a different angle, but that can be worked around with a drill and patience. 305 or 350 doesnt matter.

 

It's a bit more complicated than just bolting on a TPI unit. You'll need a new or modified ecm harness, new ecm, new chip, new fuel pump, new throttle cable, new TV cable, and many other little things in order to make the TPI work like it should...You really need to do some research before you jump into this.

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'92 RS, ZZ4 10:1 350, Edelbrock 6085 heads, Crane 208/214 467/482 cam, GM/LT4 1.6 roller rockers, Edelbrock Hi-Flow base, runners & 52mm TB, SLP/Jet-Hot 1-5/8" headers, Catco 3" cat, Flowmaster 3" catback, Hughes 2500 stall converter, stock 700R4, Auburn Pro posi w/3.42, 17x9" SS rims w/BFG tires, Medium Quasar Blue w/white SS stripes, 48,000 miles....

 

Look at the TBI to TPI tech article on here for the directions. And 305 and 350 TPI units are identical. The only difference is the injector size. 19lbs for 305 and 22lbs for 350.

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1991 Camaro Z28
5.7L 5-Speed (originally 305)
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