seems like my dsms are soaking my spark plugs. this is without using my adjustable FPR. was wonderin what fuel pressure anyones using with these. also i have a set of 275's. should i use these until i get my car tuned or turn down the fuel pressure for my DSM's

 

first step..what engine management?

 

using chipped p06. chip from phearable

 

does the ecu have a basemap for the 450's? if not then thats gonna be your problem. you will run rich. i would suggest getting it to a tuner. dont worry about messing with the fuel pressure or anything like that. if necessary use the stock injectors and ECU and then reinstall the upgraded stuff at the tuner

 

yeah it has a base map for the 450's. i included that in there special instruction part...