1/27/2024 0 Comments Ramjet 350 cam in l31I am going to use the GM 357 HP 350 HO cam this time around. A combination of not enough preload and too little spring pressure caused valve float and eventually caused a couple of lifter rollers to start locking up, scoring a couple of cam lobes. I made a couple of errors and damaged a couple of LS7 lifters and the Lunati Hotcam in the Express. Now she is aching for that cam swap.I just found a GM cam that I am about to put in the Express. Afr was probably a hair rich it was under 12.5 for all three runs. Needless to say I'm happy with my single plane intake, (edelbrock 29135) full length headers with home built 3" ORY single exhaust numbers. This was done on a Mustang dyno and my intake temp's were above 110* the entire session. Hp was satisfying also she put down 259.5hp at 4850. Small update put the truck on the rollers yesterday.
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