bad fuel mileage after rebuild

MOPAROFFICIAL said
That would be one shity hone job or chrome rings on the wrong finish.
my favorite is when the heat stove butterfly thing sticks half closed or more...

Slants ,as good as they are, had some gremlins that stumped a lot of people.
Click to expand...

Maybe. I know on my 08 Jeep Wrangler it took a while for break in. Right at 2000 miles, it felt like it added 50 LB FT of torque. .......that said, it started knocking at 18K miles and had to have a new short block.