the problem started when i decided to clean the intake manifold so to do that i had to take of the distributor but i saw it already have a mark on it so i decided not 2 mark anything now when i tried lining it back up on its mark it's not pointing at the #1 on the dizzy cap, did some research an found out there's a original mark on the dizzy with a circle at the gear, but the problem now is its still not pointing to #1, at this point i don't knw if the problem is the dizzy or what it is the engine turns over new plugs, coil so it sparks gas is coming, but it start for like 2/3 sec and backfire flames out carb/ muffle, it's not runnin like it use to, i have a g63b engine the block has ppaint on it stating g62b so don't knw if it has a 1800 block with the 2000 head i'm sure its 2000 g63b head doh, so any help will be gr8ly appreciated