Hey, I have a question about the 8.1L V8 Big Block from Chevy. I’ve been looking for it here in the forum and I hear the (e.g. 5.3L) V8 Vortec don’t harmonize so well with gas, because there are problems with the valves. Now the 8.1L is not a standard Vortec but in the Suburban it was to order for example only with the 2500 model, does that make a difference? Because driving the big block on petrol would be my financial grave. Thank you very much to you already!