Stock -70 340 block with nitrous??

Your motor won't miss a beat with that small hit.... I went through more bottles in a year than most will in a lifetime with a 250 hit on a 70 block back in the early 90's. I would splurge for a A/F gauge and make the most of it and prevent anything happening....

It amazes me how people think someone went in a different direction when they spray. No different that adding headers IMO. A power adder is a power adder bottom line...

Good luck and have fun lol...

JW