Welcome!

TBH, have the short block done...you got a new head on it and other new toys, make it worth the while. If not, consider a balance shaft delete kit. Those bolts don't just "back out" if properly torqued. Might have thread damage or something more sinister (bad shaft retainer?).

Beyond the red wheels and the fact it already has a split rear, looks a LOT like my 86 did when I bought it.