200 Cubic Inch with New Aluminum Head & matching intake. No port matching or chamber work. Chamber volume of 55-56cc (+/-.5cc). Bored thirty over, honed with a Honing Plate. Dished pistons with an compression ratio of 9.7:1 Cam Grind: H-264-12-B

Carb: Off the shelf Holley 4160 390cfm (main jets #65) mounted perpendicular to the crank. Tires: 195/75/14 @ 25.98" Dia. Tranny: T-5 with 8" Diff w/2.79 gears (way too tall).
Curb Weight 2900# w/driver and full tank (weighed at truck scales 5/17/0.

Cam timing per Waterhouse Motors @105*. Duraspark II timing: 12* initial, 17* Mechanical starting at 1250, all in by 2700 rpm, 14* Vac. Adv. (manifold). Total 43*.

So, at the wheels I'm getting 166 Ft-Lbs torque and 144 HP. The Air Fuel Ratio (AFR) min 12.0, Max 13.6, Avg 12.6 (Holley 390 out of the box).

The first pull was in forth gear. With the tall gears (2.7) it was taking forever to get to 4500 rpm. John finally stop the pull to change the programming. In forth gear the Dyno speed was over 120 mph and climbing. John finished the pulls in third gear. At rpm for the other pulls we were still doing 90+ mph.

The torque curve was very flat and didn't start to fall off until ~4900 rpm. The HP started to level off at about 5100. We tried lowering the initial timing to 10* with slightly lower resulting output. We then tried increasing the timing slightly to ~15* initial with about the same result from the first pull.

The only change made was to increase the initial timing to 14*. So after three pulls and the initial timing change, we were done.

My numbers are lower than some of the other tests but I am very happy. The important factors for me are good low and mid range torque, compression low enough I can turbo if I wish and the possibility of running on regular fuel. Based on the torque curve it looks like 3.50 gears are about what I need to run 70 - 75 mph at a lower rpm. I'll have to work the math out later. The only problem I see going to 3.50 gears is keeping the tires from spinning. I will probably have to invest in a nice set of wheels and tires at that time as well. I think I'll wait until the rubber is used up on the current tires though. Shouldn't take long...

John provided me with a csv file so I will be converting to Excel and plotting. I will have that to post soon.

See Ya'll on the Highway, Ric.