Home ported small block heads.....

About 12-13 years ago I did a set of 915 J heads for my 73 Dart Sport 340. It had a stock 70 short block, 296/557 MP solid, M1 single plane, my ported J-heads, backed with a 727 & 4.10 gears it ran 11.90's @ 110, so I was happy with the results.