23 RWHP has been the most commonly 660 # posted for years along with 25- 26 RWHP for the 700 FI.....many peeps have also commented that their 700s were no quicker that a 660...
Nate, what do those kits include then
68 is about right. With a stage1 kit we are seeing 72-73, stage2 we are seeing 80-82 and with a stage3 about 90. All stock bore and stroke.