Hi Guys, I am currently working on a 56 Ford F100 with a Nova front clip and a turbo charged 350, the truck was my Father in laws pride and joy but unfortunately he passed away in 2002 the truck was driven occasionally for the first few years now it has sat for years. I pulled all the plugs and wires cap and rotor and replaced them unfortunately I didn't mark them because I thought I knew the firing order😡!! I typed Chevy 350 firing order into google and a animated You Tube video came up(just google it and it should be the first to come up) anyway when I tried to fire it it backfired through the carb and blew a bunch of stuff out of the exhaust it seems like it is 180 degree's but I don't understand how that could be?? I used the firing order from the animated clip and started with the tower on the cap that faces the #1 cylinder and worked back from there
I used 1-3-5-7-2-4-6-8. Could he have changed the firing order?? He was a mechanic his entire life he built the turbo system himself so he had a lot of knowledge I checked to see which way the distributor was turning and it turns clockwise, not sure of the year of the block he bought a brand new 350/350hp long block in 2000 but no idea of the year, I know Japanese and mostly German cars but I really need to get this thing going so my Mother in law can sell it! Any help would be greatly appreciated, Thank You!!