Hi,
I've been having problems with my air box blowing up, its on LPG and i take it thats what is part of the problem (doesn't do it on petrol). I want to change the timing chain as this should help solve the back firing issue as well as the motor being bout 270k. I'm going to put on a double row timing kit on and just wondering whether its as straight forward as lining the cogs up with the cam and crank and lining the marks up on the chain with those on the cogs or do i need special equipment?
Any advice or comments would be greatly appreciated.
Thanx

Almost forgot, its an SS 5L.