How tight is money? New bowtie crate engines 350/260hp for about $1500 with upto a 36 month/36k warranty (for 1985 and older cars). You'll need the add on goodies like a carb and intake, w-p, harmonic balancer, headers, distributor, plugs and wires, etc. Some of those things may be available from your existing block. But you will have a fresh engine with warranty, no junk. Or if not check out e-bay or the many fine bone yards in the great Northeast.