in mi problem with 56 code. You kindly absolutely finded the source of problem and help me to fix it. My boost gauge did not show more then 0-2 when full trottle. So I've ordered By-pass solenoid and will fix the problem this weekend. Here in Russia we do not have the possibility to be in touch with your car and parts market. The car which you can buy for 5kUSD we have to only by for 9-10 kUSD because of distance and custom fee. But we are not pity about that and we repair our "full sizes" as we can to enjoy ourselves. We also have (but mainly in Russian) the USA cars enthusiasts clubs like www.freedomcars.ru, previousely named "**** the fuel economy" web site. Sorry if I was rough. We are interested in new technologies on the market, web-sites where puppliers support our vehicles upgrade programs thus I would be really appreciate you for any information about any expiriences you have. Here in Moscow there are few dozens of Bonney'* owners which really like they cars and whish them health and drivability.
I've followed by some links given on your web-site and I finded the first upgrade program to my Bonny. It is your bonus. If you agree I will give the link to your resourse for overall usage in my forum to evrybody who loves they cars like I do can use your expirience to make they cars better.
Thank you very much from Russia.
Sorry for bad English

Not sure what the problem is but I think you need to buy a intake manifold pressure sensor.
There is also a Monte Carlo SS in Moscow.