You preach them, for a good reason, they are very important. I do want one especially with my 65 V8 car. It has The 290hp/350, 222* cam on 114 LSA and 8ish:1 compression, bad comonation, good duration but way to wide of a LSA for a low compression crappy headed motor! ( I see new cam on 110LSA in the future). When I put the carb back on the 250 I will drop the jets to 55 or so and go from there.