hey there if it was me i would get a summit mag
and order sealed powers engine rebuild kit
for a chevy 350 1967-93 hypereutectic 10.72:1
comp 64cc heads that kits is 309.95$
thin i would get you crank turned 10/10
the stock 350 rods are good for 400hp
but order arp rod bod bolts part num arp-134-6003
in summit and they are 49.88$ and GET!! and good harmonic damper not the best in the world but a good one pioneer
makes a good street one it runs 84.88$ and get a good flexplate
30 to 40 $ and get your crank rods pinsons damper flexplate
balance its abot 150 to 190 get a roller timing chin 31.95$
your intake is ok to use your carb is ok to. now for the heads
iwould get a pair of world s/r cylinder heads 67cc or 58 up to you
the 58 will make you have more comp like 11.0:1 the heads are 759.00$ for the cam i would go with comp cams part num cca-12-211-2 it a 470/470 224/224 its 96.00$ get a stall 1500to 2000 that will help out get a set of roller tip rockers 99.95 that abot it good luck bud! o all of this was in summit racing equipment mag