Thank you Moses for the in depth reply. Let me tell you what I am looking to gain and perhaps you can make some suggestions. I have a 66 cj6 that currently is bone stock with a buick 225. I have been parts collecting for the past year and plan on getting the build started this summer. As a novelty, I would really like to keep the major components of this jeep as jeep factory items so I have a th400 and dana 20 from a commando, a postal rear end and a narrow track dana 30 front end waiting on the shop floor to be swapped in. I am looking to make a weekend beach/camping family vehicle out of her and want to build the motor to get myself up in the 175-180HP range without getting exotic with it. I am not one to do burnouts or punch the gas un-necessarily but would like to keep up with highway traffic and have enough on ramp power to merge without scaring my wife. I would like to be able to tow a small trailer with her on occasion as well. Honestly 80% of my driving will be on road and I was trying to get the performance I was looking for through induction and exhaust. I wouldn't mind gaining some power through a cam upgrade as well but i haven't gotten that far in my plans to know what is available our how it would compliment my potential set up. I plan on running a mild lift with either 32 or 33 inch tires and 4.10 gears. The motor that is in the jeep now has the stock ingnition but I have a spare motor that has an HEI set up that I was planning on using. I live in North Central Florida where everything is flat and we probably never get above 750ft of elevation. I wouldn't mind a TBI system, what is out there? Perhaps I am barking up the wrong tree? Maybe I should be trying to build that power internally? Let me know what you think!