A 150 is not a huge increment in power. Oh it's gonna be good but not at a level where you need to have a setup like a Top Sportsman car. Opinions will vary on that.
If you want to keep everything in check get a Bottle heater with a Pressure gauge. Alot can change from just 25lbs. of pressure variation. I wouldn't put the effort into the EGT myself. AFR is fine. Make sure you have additional Ring gap also although a 150 shot tuned properly should "used loosely" be OK without doing that.
And yes Yellow Bullet is a good source for your project....
JW
