Well first things first it is a Q motor and if it is your starboard motor it is std rotation or should be. That said firing order is 1-5-6-3-4-2-7-8 from the pictures you posted I'm not sure where number 1 is on the cap but I suspect it is lower left at approx 9 o'clock which seems a little out of place but who knows with that HEI distributor. It doesnt matter where it is just that it is timed correctly and the firing order is correct. The Q firing order is essentialy the same as std gm firing order but the cylinders are renumbered to make sense for the placement of the motor number 1 cylinder is front inboard side for you and they are numbered odd on one side of the block and even on the other as in 1-3-5-7 down the inboard side and 2-4-6-8 down the outboard side. To set the timing on the Q there is a pointer at the front of the motor which should line up with a dimple on the flywheel marked with an R. Use the opening on the right to shine the timing light in. You will see the pointer inside the window.
