well just a cam from msa is $169, i forgot to mention the extra costs. But i agree, it's better to save up for somthing that will make you grin, then put alot of money into somthing that might be ok for awhile.
LT1 ($600-?)
first gen 350 ($300-?)
l28et ($200-$600)
add $500 to the v8's (for exhaust, mounts, fuel pump, dist, radiator etc)