I'm not sure i have ever seen this addressed here. I have a 92 Z28 vert w/ LB9 and am just wondering if there is any significant difference code wise between the 305 and 350 PROMs and which may be better. I'd copy the VE/PE and spark related data from my 305 into the 350 bin if i was going to change.
I'll prolly try it either way, i'm just wondering if anybody else has already done so.

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Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
305 TPI A4 2.73 - 14.7 @ 93.6
Stock except ported plenum and dual cats
-=ICON Motorsports=-

- Definitely prototypes, high powered mutants of some kind. Too weird to live, too cool to die

 

Always better to start with a MEMCAL for the right application. Remember the knock sensor stuff is on the memcal. Might run into problems.

 

There's very little difference in the fuel and spark tables between a 305 and a 350, anyway. A 350 bin would probably be closer to what you want tho, so you'd have to change less things. AUJP is a 92 350 L98.

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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
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