love the old school tech, dont see very many around, if i can get it to push out 130-140 horses i will be happy, head specs so far, full port and polish, .5mm oversized valves on the exhaust side, 5 angle valve grind on the inlet and three angle on the exhaust, decked 20thou and a custom cam, valve springs and retainers are also on order, looking to grab a pair of webbers or see how far i can modify the stock carbs only problem is all the emmisions rubbish attached to it. in regards to pistons d16a6 will work?