Chev. block
If your down to the cylinders, 4 inch = 350...3.750 = 305..Go to www.MorTec.com . Look in the back for all Chev. casting #'s..Good to have all the old (and new) casting numbers....Hope this helps..Good Luck
Tubing
Best place and best prices...Shapiro Supply Co. St. louis, Mo. 314-382-8557 1-800-833-1259 Good Luck Mention National Dragster and get a hell of a deal...
