The 416 xe274h went 12.8 @109 with 3.55 gears and 255/60 ET Streets. Hopefully it will go faster with a better launch. The tires were on rims that were too narrow and not working the best possible. This year, I'm going from 7"rims to 8", putting the original 3.91 back in and changing the Eddy 750 to a Holley 750dp.
The 340/ex268 was much closer to stock, including exhaust manifolds. With 245/60-14 street radials and the 3.55 gears it was going 14.5 @just about or under 100.
The ex274 setup is noticeably more lumpy but still very good at low rpms. I'm suppose a lot of that has to do with the longer stroke. The car has no power anything so vacuum is not really a consideration.
