I think my 57 bigbolt has the same carb. on it. The previous owner probably changed it. I think I am supposed to have a Zenith. But it starts and runs perfect with the Rochester. So I aint gonna fix something that is not broken.
57 GMC LCF 370 55 John Deere 40-W 59 John Deere 430-W 2000 GMC 4x4 56 John Deere 420-W Pix on Photobucket
