what is the 28 twin engine sonic like

BBC or SBC?

SBC is a much better package.
The BBC in a twin config will run like a raped ape, but it is tight, and heavy which affects handling, and ability to work on the engines easily.

silly question did they come with 6.2's or just 350's

my buddy is going to look at a 1995 with 502 s. how do they ride in the chop ?

I have a 1999 with twin 350's. If he is interested have him call me Audra 571-220-2656

I've seen 6.2's in the 28.... not many around since the 6.2's came out just before they dumped the 28 from the lineup.....

Better to get a used 31. If you go 28 stay with the SBC almost as fast, better ride, less bounce and a lot less fuel. Either are a beyatch to work on though...