Discussion Starter · #1 ·
I have a 1968 Impala 4dr hardtop with the factory numbers matching 307. It's a dog, but it doesn't really bother me that much. The engine runs well and has good compression, but I'd like to get a little extra power while keeping it mostly original and not hurting reliability. Looking for 250-275hp and maybe 325-350tq. The car has a 2spd power glide and a highway rear end. Not sure of gearing. Thanks for your input.