What do i need to hit 11.9-12.2 range - ZR-1 Net Registry Forums

flyin ryan · 05-22-2008

best power will happen between 12.8:1 & 13.1:1 on a naturally asperated well sorted out gasoline engine. i dynoed a 320 cube & 315 cube small block's, that i just finished, last week. used the same 750 carb on both. jetting, air bleeds & timing were actually quite a bit different for each engine. at the end of each days dyno i was right on those A/F numbers, i wasn't surprised at all, 98% of the time that's what i see is best. FYI both engines made 2.2 HP/cube. not the best but for what i was given to deal with (older parts ) pretty good.

05-22-2008	#10
flyin ryan Join Date: Aug 2006 Location: Edmonton, Alberta or Phoenix, Arizona Posts: 2,741	Re: What do i need to hit 11.9-12.2 range best power will happen between 12.8:1 & 13.1:1 on a naturally asperated well sorted out gasoline engine. i dynoed a 320 cube & 315 cube small block's, that i just finished, last week. used the same 750 carb on both. jetting, air bleeds & timing were actually quite a bit different for each engine. at the end of each days dyno i was right on those A/F numbers, i wasn't surprised at all, 98% of the time that's what i see is best. FYI both engines made 2.2 HP/cube. not the best but for what i was given to deal with (older parts ) pretty good. __________________ There are no limit's mans ingenuity, just as mans ingenuity will never conquer the forces & behavior of this planet...Smokey Y.