alright fella i have a standard one and a chipped one not sure on the chipped one who it is by but it did go over 30 psi when i plugged it in my series 1 might need to rejet the jets in the amal valve as i only had one jet but it never pinked or back fired also on the back it has "done" scribed in it. This one advanced the ignition timing about 3 or 4 degrees if i remember right
started on the button never gave me no probs
standard one started on the button with no probs