LOL...Actually, I'm dealing with a very strange problem right now.
I've been running this homemade MBC for about a month and a half. The first 2 days I had it, It adjusted accordingly and was perfect. Then one day, it just decided to boost spike like no other and I could only HOLD it at 7psi or Max it out... So I just haven't really been racing the last month or so...Well, since I was having problems with it, That was when I got experimental and put it in my glove box. It spooled the same as when in my engine bay... But there were a few times throughout that 1 month period where I could turn it just right and it would hold 10.5-11psi. I thought I fixed it so I tried to turn it up just a bit more, and NOPE, 19psi + FCO.
So yesterday, I borrowed(and still have) my friends MBC (a real one that was like $80)...STILL ran it in my glove box, and it worked perfectly. Well...It worked perfectly for about 7 hours...then out of no where when I got ready to spool, it maxxed out (I had it set at 14psi)...so then I just cut it down back to my engine bay w/ the good MBC...and it was perfect (15psi or so)...Then later that night, out of no where, It spikes again. It pulls nice and hard and healthy in 1st gear.
but then as it shifts itself into 2nd, immediately hits FCO (18.5-19psi)...I don't know what the deal is.