i buddy of mine recently found an old grand am at the scrapyard. he said it was a 90 or 91, back when they were still square. it had a 2.3 motor in it but obviously an older one.the intake manifold on it looks nothing like the LO or the HO but the ports and bolts all match up. also checks my adapter i got from chris fontana and it is port matched to that also. i guess my question is since it all matches up the same as the LO and HO will there be any significant power change?

Got a picture of what it looks like?


~Boost. Its what's for dinner!~

probably the old tubular intake manifold..itll bolt up but doesnt flow as well as the later version