134 in general needs a good condenser, especially when we're trying to cool off these glass barns with bad insulation
Just a general note about it though (not geared towards anyone in particular, legitimately just a note for anyone reading about conversions and cooling challenges like this), remember that if the vehicle came with R12, there are general "conversion factors" for the new charge that should be considered ballpark at best. Then once you start changing components, all of that goes out the window.
It needs to be charged according to pressures and temperatures, preferably by someone familiar enough that they fully understand what they are seeing vs just "Charging until the vents seem about right". Parallel condensers are almost always a great idea if you need more performance, but they may make the vehicle more sensitive to exact charge amounts, depending on the rest of the system. Swapping the orifice tube can help as well, but again, needs to be done by someone competent, like they have had schooling for AC plus a decade of experience, or at least a half dozen successful conversions themselves. If that's the person reading this, then great, but if not, find someone who understands it, at least the first time. Bonus if they can weigh in charge along the way and tell you what was installed, so that in the future, you can charge by weight. You might find that what you saved by not taking it to someone was lost in recharging the gas and extra components you didn't know were needed the first time and/or burned up by improper oil etc.
