Should run pretty good with nice sound and able to cruise. Won't feel really quick with those gears though. 3.42 gears would help alot and still get good mileage. What casting are the heads? Also would help to have 2500-2800 stall, because engine size (torque) will have it stalling lower.
Nobody likes 307's.....I've got a 307, 030 over, new flat tops, new rods; a pair of '87 305 heads; a 327/350hp blueprint cam; EDL.performer rpm, 500 EDL carb; long tube headers,350 turbo w/1700/2100 conv, 2:72 open rear, 1973 Nova; What can I expect? Want dependable, little xtra oomph, nice sound, driver, what do you think...?