When I bought the car with the L4 engine I had to re-wire the starter. Drove the car for two years before changing to a V8.
I had some trouble with the cooling when I changed to a 350 Small Block 375 horsepower, even with a new Mercedes-Benz aluminum rad, recovery times after hard driving were very bad.
With the 305 V8 I have had no overheating problem even in 112 degrees in rush hour traffic.
The Vista Visor is now dripping when it rains.
With the V8 350-375 with the M19 (4:10) I could lift the front wheels off the ground. I lost no races with anything on the road, Vipers, Corvette, Stang, 70's Muscle cars.
The V8 305 is very good on gas with 18-24 MPG.
The 200hp 305 is still very quick and not much can keep up, though I still want to put in a 5 speed that I have in the spring.
How much did it cost to put in the V8 about?
What kind of kit did you use, V8 archie kit, HTD Eliminator kit, etc? what year 5.0l is it?
What kind of water pump did you used with the 350v8.