Thanks for the info. I just decided the extra cubes would be fun for the street. I bought the 70 Mach 1 new in 1970 and I couldn't get the 428 CJ because of insurance cost. I bought one with the 351C instead. It ran good, but it never had that low end feel the 428 had. I just thought with all the stroker kits and new cams available for the 351C, why not have some fun. The motor I'm building is an extra block I bought. I'm saving the original motor as it was.