Join Date: Aug 1998
Location: Waldorf Md. USA
A motor is a motor is a motor ! You have to do the same things that you would do to a V-8 to increase performance. Maybe a new cam...head work.. different carb...ignition...headers...I can go on forever. The parts are available from many sources for the Chevy Sixes. All of the major manufacturers hve cams etc. Just let your fingers do the searching !
By the way there are plenty of very strong running sixes out there.
Advanced Automotive Machine