Hi, iam doing a budget rebuild on my 73 400 that i had in my 67 chevyll for 13 years. Over the years i put in a crane cam 272 -216-454 lift, timeing chain, small tub headers,holley street domanater intake, 750 vac holley carb, Hei distributor, 350 trans, 355 gears,2200-2400 stall conv. This is a weekend warior car and take it to the track 1or 2 times a year. This motor has standerd bore,crank,rods, stock 76cc heads.Compression test was 165 all around. Best time was 13.60 98 mph. This motor had lots of torque down low but died at top end. 5500 Max rpm. My plan is to hone cylinders, molly rings, rod and main bearings. New cam that i think would not be to big for street is a 280-230 480 lift, for heads i have a nice pair of 69-70 302- 350 041 heads with 64cc will be close to 10.1 with my dish pistons. What hone stones can i use 400 grit? Hows my combo? THANKS