I have been seeking out the best bang per buck on small blocks and have come up with a dream engine that is still affordable making 900 + hp N/A.
get a good short block built, I had one with callais stuf je forged pistons , total seal rings coated bearings, erson billet cam and timing gear , little m block etc. complete less pan $5200.00 assembled.
you will want , self racings 18 degree Clone heads, they sell them ported and assembled with stainless steel valves $3500.00 they flow 430 cfm on intake. you would need a intake, $340.00 , jesel shaft rockers $1,100.00
manton salt treated pushrods $269.00, pbm offsel lifters $325.00 sheetmetal valve covers $160.00 miledon pan $280.00 hi volume oil pump $89.00 and your distributor, water pump , etc so 1174.00 will net you what you need. Give kevin a call at self, pretty cool stuf, the heads use their patented PORT INTRUDER which replaces the center stud of the head with a bolt, I'm having some heads done that way.
Al