Originally Posted by 1985air345
1) I'm not an engine expert but are you replacing it with a newer fuel injected engine?
2) What about the transmission? I hated my 345 geared for 55 mph. I know some folks have added Gear Vendors overdrive units.
The engine is not fuel injected, it has a carburetor. It's a 350 high performance 330hp, 380 lbs- ft torque. I didn't want to add a computer to the system. This engine uses premium gas, which may improve milage, but not the total fuel cost.
I put the stock 400 transmission, no overdrive. I've read several threads here about Gear Vendors. I did not put one in. Too many people said that, for the cost, it didn't last too long, needed too much maintance, and didn't make much difference in milage. I did any a co-worker tell me that I should use Gear Vendors. I may try one later if the mpg is really bad.