Hey guys, I'm new to SoCal so take it easy on me as I'm new to the jetty scene. I've done a lot of homework but there's still MUCH to learn. What I've got is a 1980 Ervin Capps Condor 5.5 I bought the hull and trailer for $300! Trailer I think was totaled tho looks like it may of been jack knifed at some point.  Since I've picked it up I've gotten my hands on a mercruiser 260hp chevy 350  which I have sittin it now, a set of log exhaust headers, some old front seats, and I have some stuff for a 460. Anyways the boat is 18ft equipped with a berkeley 12je I think an a cut impeller. Also have a berkeley 12jc pump housing with no internals. Anyway this will be a slow build and I'm sure ill be asking lots of questions so any tips and info along the way would be appreciated!! And I'll try and post as many pictures as I can. I can't seem to find but 2 or 3 other condor 5.5's on the web so I'm thinking this is a pretty rare boat to come across.

Welcome to SCJB 

A moderate small block build will run that thing just fine.  The only place you might have an issue would be trying to get over 55-65mph, depending on how well the hull works in the water.

I'd say put it together with what you have, run it, make changes, run it some more, and then replace it with one that you'll find and can't resist.