After 2 years our '48 GMC long bed 1/2 ton finally runs and drives! We completely replaced the wiring upgrading to 12V,the fuel system and brakes. The head had to be reconditioned and we installed new rings and bearings. Mechanically it's very sound and safe to drive now. Along the way I've received quite a bit of help from folks on this forum. Without you this wouldn't be possible. Thank you all!