Remember that we're limiting our rpm to 7,000 until we can install the second oil feed line to our oiling system, and our camshaft actually makes power up above 8,000 rpm. Once our oil system is complete, we will certainly shave some elapsed time by raising our shift points closer to 7,500 rpm. We will also add more ignition timing to the engine as it responded well to our first increase in timing. Our rule of thumb is to add ignition timing until no further increase in performance is seen, or until the engine begins running noticeably warmer (an indication of detonation) during a pass down the track. Our engine was happy and responded well to 40-degrees total advance, so we'll bump the timing again during our next test session. This may seem like a lot of ignition timing, but remember unless you have checked the tab on your timing cover for accuracy the numbers are somewhat ambiguous. We checked our tab during assembly when we were degreeing the camshaft and found it to be some four degrees off true top dead center, so our 40 degrees of advance is actually only 36 degrees. Optimum ignition timing varies widely from engine to engine and is dictated not only by compression and fuel octane, but by cylinder head and piston design, weight and gearing of the vehicle, and other variables. We always begin at around 36-degrees total advance on aluminum headed big-blocks and adjust to whatever makes the car run quickest without overheating.

So there you have it, our 500-inch wedge accomplished the goal we set of low-nines in our nearly 3,100-pound Barracuda. We will experiment later with more tuning and induction changes to try to improve our combination, but for now we're just going to race it. after our initial testing session we entered the Southern Nostalgia Nationals at Lakeland Motorsports Park and won our class both days of the two-day event! The following weekend we entered the Georgia Southern Bracket Nationals where we went several rounds each day among a field compiled of 90-percent dragsters (which in our opinion are purpose-built race vehicles, not cars) driven by the best bracket racers from around the country. The first race we'll enter at a quarter-mile strip is the Snowbird Nationals in Bradenton, Florida, and we'll keep you posted as to how we run at that event.

SOURCE
Crane Cams
530 Fentress Blvd.
Daytona Beach
FL  32114
3-86/-252-1151
N/A
www.cranecams.com
Chenoweth Speed & Machine
Morton
IL
309-266-5390
www.gearsandrears.com
Hooker Headers (A Division of Holley)
N/A
8-00/-Hol-ley1
holley.com
Milodon
2250 Agate Ct.
Simi Valley
CA  93065
805-577-5950
www.milodon.net
Clevite Engine Parts Cometic Gaskets
4-40/-354-0777
Moroso Performance Products
203-453-6571
moroso.com
Indy Cylinder Head
8621 Southeastern Ave.
Indianapolis
IN  46239
3-17/-862-3724
indyheads.com
Barry Grant/Demon Carburetion
Dahlonega
GA
7-06/-864-8544
barrygrant.com
Dana/Victor-Reinz
Lisle
IL
630-271-0001
www.victorreinz.com
Automotive Performance Engines
Auburndale
FL
8-63/-967-8781
Flex-A-Lite
8-00/-851-1610
www.flex-a-lite.com