I picked up an 88r motor that CT racing built to an 330 stroker running an 100 octain. I was told that it isn't ported but has an Nikasil cylinder. About 20 hour on it. So witch pipe and silence do you all think I should go with? Is 20 hours alot af time?
The cylinder can be ported and Nikasil'ed. Nikasil is just a coating on the cylinder wall. I would say a Sparks TT, ESR TRX-5 would be pretty good pipes with that set up, although others may chime in with their findings.
20 hours isn't that much time if the bike is maintained. If it has not be re-built in the past 20 hours, I would recommend new rings, and new wrist pin bearings along with new bottom end gaskets and seals for the head.
Also make sure their isn't any play on the rod when apart.