my buddy from Kinmundy,and I are thinking of riding the Tunnel Hill Bike trail in southern Illinois...runs from Herrin,Illinois down near Cairo maintained by the state now, it was once a railroad 45 miles long .I talked to a guy here in Centralia that rode his pedal bike the whole trail,he said it was really nice....it runs through the Shawnee National Forest,and although the landscape is full of bluffs and hills the trail is mainly level as it was when the track was used ..supposed to be a really scenic ride ..we're talken about goin when the leaves begin to change it'll be really pretty then ,and cooler(no dang Mosquito's)...on line I have saw the cylinder heads for around 12 dollars plus shipping...if your interested in Tunnel Hill let us know..