lm7 with 243 heads
Aug 10, 2013 | 10:40 AM
#21
Honestly I couldn't tell you I did the cam and converter at the same time
Edit: but it must've been good enough to only drop about half a mpg from 17 to about 16.5 in a heavy extended cab short bed z71 with heavy centerline 16's and 285/75 r16 falken wildpeak at's.
Edit: but it must've been good enough to only drop about half a mpg from 17 to about 16.5 in a heavy extended cab short bed z71 with heavy centerline 16's and 285/75 r16 falken wildpeak at's.
Thread
Thread Starter
Forum
Replies
Last Post
03regcab sierra
INTERNAL ENGINE MODIFICATIONS
2
Sep 9, 2015 02:02 PM
BigEd_72455
GM Parts Classifieds
0
Aug 8, 2015 04:49 PM
