i just noticed this post but friend has 68 327, roller cam, 461 heads with 2 05 1.6 valves (expensive to do on iron heads) holley 750 double pumper, all msd ignition which i would recommend, headers, good rear end 4 10 gears, turbo 350, 3500 stall, edelbrock victor jr intake, motor runs real strong, all street car and eats almost any car around, revs to an easy 7000 rpms 327s are known for that, i would recommend bigger valved heads but those are just some options he has done, in 86 monte carlo and motor flies, good choice with the 327. ask for that streets guy, blower sounds great but dents the wallet, and from what i read i wont say anything bad cause he knows way more than i do, good luck.