By Grayson on Saturday, June 02, 2001 - 06:40 pm: Edit

I was wondering if anybody has done an engine swap to a 4.2L. I plan on doing some porting and matching to the heads and intake. Has anyone shortened their trumpets in the intake plenum. How much is each one shortened and what kind of performance gains can you expect.Anybody purchased headers from RPI Engineering? I have a 4.2L ECU and it will plug right in my harness(Lucas Hot Wire). Any computer mods worth the expense? What about Cams? Crane or Piper?