How and what does it usually cost to fix a leak in the exhaust manifold gasket?
and would getting headers on the motor fix the issue or what? I have a 305

if its dd then fix it and probbly cost ya $150 maybe more maybe less but if ya fixxing it up get rid of it toss ya a 350 or 383 in it mount you up a 700r4 trans in if yours has one than use it till it dies if its about to die then its better to rebuild or get another 700r4