I am going to put a 350 in my 1992 Rs soon and I know I need a prom chip and the guy at the engine place said it will cost me like 170 for the prom and to put it in He said he had to remove something in the computer does this sound right?? Thanks

 

New 350 prom from GM is around $75. Thats for a 350TPI chip. But if your going 350 TBI than all you need to do is get a aftermarket prom if they make them, don't know. Takes about 10 minutes to change proms. Give us some more info on how your car is being set-up.

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1992 Camaro Z-28 custom 25th anniversary, 5.7 TPI auto, 2.73 posi, t-tops, arctic white with 92' medium mettalic gray stripes with black border stripe.

1967 Pontiac Catalina 2 door fastback, 400 v-8, auto, cameo white, dark red interior

 

75 bucks? Yikes, where do you shop?

Last one I got about a year ago was 35 including tax. Im not sure what chip you would need on that if theres a stock one available. Is it a TBI car? Might ask on the TBI board about it.

 

I know, I could have gotten a custom chip for that. But thats what they cost at the GM dealer. Different cars and setups may vary with price. I just bought mine a couple of months ago.


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1992 Camaro Z-28 custom 25th anniversary, 5.7 TPI auto, 2.73 posi, t-tops, arctic white with 92' medium mettalic gray stripes with black border stripe.

1967 Pontiac Catalina 2 door fastback, 400 v-8, auto, cameo white, dark red interior

 

I bought a hyper tech stage 2 chip about 5 years ago and paid like $135 at a speed shop for it. I have a RS with a 350 in it also. As far as installation it is very easy. Located inside the car on the passangers side .Its only a matter of opening the ECM ,(control module) pulling out the old chip and sliding the new one in. PS... dont forget the fan coolent switch. Though it will run without it. The fan won't kick on till about 220-230 degrees. Now since i put the fan switch on it kicks on around 190. Usually costs around $40 to $50 dollars in my area.