Glad you jumped in Jerry. Really would prefer a "dumb" Atlas but would probably go with the FiTech 39001 2bbl tbi. It's good for 400hp, self contained and self tuning which alleviates a lot of worry from the carb guys. It will be a good while before engine work happens as first I will design and fab a firewall recess that gives uncrowded room for the Atlas (I don't think they make wheelbarrows that skinny) and second, to try and keep the lube system factory, a front suspension that allows a front sump pan to fit. We used to use Volare/Aspen cross torsion bar ifs but no need to go with something scarce now. Some of the modern GM rides have torsion bars but track width is too wide I'm sure. If the monsoon season ever ends I can start looking under and measuring both American and foreign set ups. About 1500 vehicles (not mine) down in the yard right now waiting for the crusher so have a big selection to choose from. Not me, but some have used the Ford Crown Vic ifs and since Ford has used front sump engines for years something might measure out right there. As some of you have guessed I'm not the brightest bulb on vvt but that's why I'm pulling your chain. 83 with an iffy ticker and diabetes makes me one they won't even waste a hospital bed on so may be a pest till the scare is over. Last, I have an option on a half dozen 4200 Atlas engines with one that's supposed to be good so if anyone else wants one to brainstorm with, let me know. The supposed to be good one has my name on it.
