ok ive got a age old problem with new twist....reciently i completely rebuilt a 79 350 corvette ...orgionally an L48 with four barrel carb... i rebuilt a different 350 block of same period except a 4 bolt main instead of a 2 bolt ...all new everything and put new heads on set up for an L82 but that just means bigger valves... i get spark and with the new added on ..inline electric fuel pump i get fuel and i pump throttle on carb and can see gas sqirting into carb ....I followed book to the letter on timing and according to the shop manual crank, cam , and distributor all exactly as they should be timed...

But still no matter what i do the car turns over but will not start... pops a little here and there but nothing..... before the rebuild the carb was rebuilt a year prior so i know it should be still ok ..but to my amazement the OEM block for years had a dead cylinder still ran and previous owner (my father) had no clue so the carb was adjusted to technically a 7 cylinder motor but ran without issue.

So basically everything that says the car should run adds up to no go... not sure exact year of block but same cast number as OEM one...wondering if fireing order changed with in those years or with L82 heads could air fuel mixture need adjustment im not aware of...............any ideas..?... thanks mike