408 LTFT help?
07-29-2013, 09:01 AM
#1
Staging Lane
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408 LTFT help? I hope I have this post on the right forum. I have a fully forged 408 tfs 215, 247/251 623 111 lsa, fast 90/90 my fuel trims will be at 10% thrn jump to 20% back and forth. It was tuned at rpm in DEL. WHY I don't have any vacuum leaks
07-29-2013, 09:19 AM
#2
On The Tree
Did you change injectors when you did the intake/cam swap?? Either way you look at it, the engine needs to be tuned before you run it, could cause damage if it isn't tuned beforehand.
07-29-2013, 11:19 AM
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Its tuned by rpm (Race proven motorsports) and has 42lbs injectors. I smoke tested it and went over every vacuum port. Ie booster pcv intake ect ect