Is there any books or information on the GMC's. I just picked up a 302 GMC, Military,no fuel pump provision, enclosed carb, watertight connectors and plumbing, the crank is 10/10 and looks good .030 over on the bore and no ridge. no bell housing or flywheel. I need to find out if the 228,248,270 parts are interchangable and if there any aftermarket parts?-------------------Thanks Dave
