I have a dying 1988 350cid with a throttle body and 195K miles. I have been looking into crate motors from either GM or Jasper. I'm looking at either a stock replacement or a small step up to 300hp and 380lbs torque. I've heard conflicting ideas about my throttle body computer working on a crate motor that's not stock. Some say the stock computer will not handle the larger motor even if you change the chip because it's not made to handle the vacuum readings, etc. Others have told me that they have seen throttle body units work fine on larger engines and a chip change will work and if anything is affected, it's only the upper RPM ranges, 5K, that I'd not be using anyway. I want to keep my throttle body because of the problems carbs have on the trails. I don't want to put the extra money into a slightly larger engine if the throttle body isn't going to work. What do you guys think?