IMO save the money and forget about the heads, doing heads won't give you much more torque for the money spent. Take your stock heads down to a good Auto Machine Shop and have them clean up the valves and valve seats and put in new valve seals, that is what I did and the shop only charged me a $100 for the set, I did provide the valve seals.
The 88 inch engine with a big bore kit will not produce the torque the 96 inch engine will with a 103 big bore kit. Even though the parts are the same the problem will be in the stroke in the crank, the only difference between the 96/103 and the 88/95 engine is the stroke.
The 3/8 of an inch increase in stroke in the 96/103 will produce more torque but it will not produce the HP numbers that you will get out of a 88/95. On a 95 inch BB you should get around even HP/torque numbers such as 100 HP and 100 ft lb of torque for example where a 103 BB will produce numbers like 90 HP and 105 ft lbs of torque.
A good 95 inch BB will run great with the right cam and a good tune and they will keep up with any 103 out there.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
08 FLTR candy red sunglo,with 2015 103 HO, V&H Dresser Duals with Monster Rounds, Power Vision tuner, Willy Shiny Wheels and Forks and a bunch of other stuff.